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Wu H, Kalia V, Manz KE, Chillrud L, Dishon NH, Jackson GL, Dye CK, Orvieto R, Aizer A, Levine H, Kioumourtzoglou MA, Pennell KD, Baccarelli AA, Machtinger R. Exposome Profiling of Environmental Pollutants in Seminal Plasma and Novel Associations with Semen Parameters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:13594-13604. [PMID: 39053901 DOI: 10.1021/acs.est.3c10314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Indicators of male fertility are in decline globally, but the underlying causes, including the role of environmental exposures, are unclear. This study aimed to examine organic chemical pollutants in seminal plasma, including both known priority environmental chemicals and less studied chemicals, to identify uncharacterized male reproductive environmental toxicants. Semen samples were collected from 100 individuals and assessed for sperm concentration, percent motility, and total motile sperm. Targeted and nontargeted organic pollutant exposures were measured from seminal plasma using gas chromatography, which showed widespread detection of organic pollutants in seminal plasma across all exposure classes. We used principal component pursuit (PCP) on our targeted panel and derived one component (driven by etriadizole) associated with total motile sperm (p < 0.001) and concentration (p = 0.03). This was confirmed by the exposome-wide association models using individual chemicals, where etriadizole was negatively associated with total motile sperm (FDR q = 0.01) and concentration (q = 0.07). Using PCP on 814 nontargeted spectral peaks identified a component that was associated with total motile sperm (p = 0.001). Bayesian kernel machine regression identified one principal driver of this association, which was analytically confirmed to be N-nitrosodiethylamine. These findings are promising and consistent with experimental evidence showing that etridiazole and N-nitrosodiethylamine may be reproductive toxicants.
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Affiliation(s)
- Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Vrinda Kalia
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Katherine E Manz
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Lawrence Chillrud
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Nathalie Hoffmann Dishon
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Gabriela L Jackson
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Christian K Dye
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Raoul Orvieto
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Adva Aizer
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Hagai Levine
- Braun School of Public Health, Hadassah Medical Organization, Faculty of Medicine, Hebrew University, Jerusalem 9112102, Israel
| | - Marianthi-Anna Kioumourtzoglou
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Kurt D Pennell
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Ronit Machtinger
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
- School of Medicine, Tel-Aviv University, Tel Aviv 6997801, Israel
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Chen LW, Mo HY, Shan CH, Chen X, Han C, Tao FB, Gao H. Health hazards of preconception phthalate exposure: A scoping review of epidemiology studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116763. [PMID: 39047367 DOI: 10.1016/j.ecoenv.2024.116763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
There is a close relationship between preconception health and maternal and child health outcomes, and the consequences may be passed down from generation to generation. In 2018, Lancet published three consecutive articles emphasizing the importance of the preconception period. Phthalic acid ester (PAE) exposure during this period may affect gametogenesis and epigenetic information in gametophytes, thereby affecting embryonic development and offspring health. Therefore, this article reviews the effects of parental preconception PAE exposure on reproductive/birth outcomes and offspring health, to provide new evidence on this topic. We searched Web of Science, MEDLINE (through PubMed), the China National Knowledge Infrastructure (CNKI), ScienceDirect, and the VIP Journal Library from the date of database establishment to July 3, 2024. Finally, 12 articles were included. Three studies investigated the health hazards (effects on birth weight, abortion, etc.) of women's preconception PAE exposure. Nine studies involved both parents. Nine studies considered the impacts of PAE preconception exposure on reproductive/birth outcomes, focusing on birth weight, pregnancy loss, preterm birth, embryo quality, and placental weight. Three studies considered the impacts of preconception PAE exposure on offspring behavior. The results of this review suggested that parental preconception PAE exposure may have an impact on reproductive/birth outcomes and offspring behavior, including birth weight, child behavior, and dietary behavior. However, studies on the health hazards of preconception PAE exposure are relatively scarce, and the outcomes of current studies are varied. It is necessary to use systematic reviews to verify an accurate research question to provide recommendations for public health policy making.
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Affiliation(s)
- Li-Wen Chen
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Hua-Yan Mo
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Chun-Han Shan
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Xin Chen
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Chen Han
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Fang-Biao Tao
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China.
| | - Hui Gao
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China.
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Garvik OS, Jølving LR, Lund K, Friedman S, Nørgård BM. Paternal use of selective serotonin reuptake inhibitors and adverse health outcomes: A nationwide cohort study on 13,547 exposed children. Andrology 2024. [PMID: 38639021 DOI: 10.1111/andr.13646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/29/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND The use of selective serotonin reuptake inhibitors (SSRIs) has increased over time. Several studies indicate that paternal use of medication may adversely affect the developing fetus. Only a few studies have investigated the association between preconceptional paternal exposure to SSRIs and the risks of adverse health outcomes in children. OBJECTIVES This study aimed to assess adverse birth outcomes and adverse early life events in children fathered by men using SSRIs prior to conception. MATERIALS AND METHODS All live-born singleton children born in Denmark from 1997 until 2019 and their parents were included. The exposed cohort comprised all children fathered by men using SSRIs 3 months prior to conception and the unexposed cohort comprised all other children. We estimated the odds ratios for adverse birth outcomes: small for gestational age (SGA), preterm birth, low Apgar score, and major congenital malformations. Furthermore, we estimated the hazard ratios for adverse early life events of infections and hospitalizations within 1 year from birth. We also examined adverse birth outcomes and the adverse early life events according to SSRI subgroups. RESULTS There was a statistically significantly increased odds ratio 1.15 (confidence interval, CI: 1.06-1.23) for preterm birth. No significant results were found for SGA, low Apgar score, and major congenital malformations. The adjusted hazard ratios for hospitalizations and infections were 1.06 (CI: 1.02-1.11) and 1.02 (CI: 0.97-1.07), respectively. There was a statistically significantly increased odds ratio for preterm birth with respect to the SSRI subgroups citalopram and escitalopram, and for hospitalizations with respect to citalopram. DISCUSSION AND CONCLUSION Although the risks of certain adverse birth and adverse early life outcomes were statistically significantly increased, the ratios were small and may have limited clinical importance. Paternal use of SSRI was in general safe in the preconceptual period.
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Affiliation(s)
| | - Line Riis Jølving
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Ken Lund
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Sonia Friedman
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Gastroenterology Division, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Bente Mertz Nørgård
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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Deng X, Liang S, Tang Y, Li Y, Xu R, Luo L, Wang Q, Zhang X, Liu Y. Adverse effects of bisphenol A and its analogues on male fertility: An epigenetic perspective. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123393. [PMID: 38266695 DOI: 10.1016/j.envpol.2024.123393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/11/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
In recent years, there has been growing concern about the adverse effects of endocrine disrupting chemicals (EDCs) on male fertility. Epigenetic modification is critical for male germline development, and has been suggested as a potential mechanism for impaired fertility induced by EDCs. Bisphenol A (BPA) has been recognized as a typical EDC. BPA and its analogues, which are still widely used in various consumer products, have garnered increasing attention due to their reproductive toxicity and the potential to induce epigenetic alteration. This literature review provides an overview of studies investigating the adverse effects of bisphenol exposures on epigenetic modifications and male fertility. Existing studies provide evidence that exposure to bisphenols can lead to adverse effects on male fertility, including declined semen quality, altered reproductive hormone levels, and adverse reproductive outcomes. Epigenetic patterns, including DNA methylation, histone modification, and non-coding RNA expression, can be altered by bisphenol exposures. Transgenerational effects, which influence the fertility and epigenetic patterns of unexposed generations, have also been identified. However, the magnitude and direction of certain outcomes varied across different studies. Investigations into the dynamics of histopathological and epigenetic alterations associated with bisphenol exposures during developmental stages can enhance the understanding of the epigenetic effects of bisphenols, the implication of epigenetic alteration on male fertility, and the health of successive generation.
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Affiliation(s)
- Xinyi Deng
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Sihan Liang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yuqian Tang
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute, Guangdong Provincial Fertility Hospital, Guangzhou, China
| | - Yingxin Li
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Ruijun Xu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Lu Luo
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qiling Wang
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute, Guangdong Provincial Fertility Hospital, Guangzhou, China
| | - Xinzong Zhang
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute, Guangdong Provincial Fertility Hospital, Guangzhou, China
| | - Yuewei Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
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Lu L, Cheng Y, Wu W, Wang L, Li S, Li Q, Chen L, Zhang J, Chen R, Tan X, Hong Y, Yang L, Song Y. Paternal p,p'-DDE exposure and pre-pubertal high-fat diet increases the susceptibility to fertility impairment and sperm Igf2 DMR2 hypo-methylation in male offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115999. [PMID: 38262096 DOI: 10.1016/j.ecoenv.2024.115999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
The hypothesis of paternal origins of health and disease (POHaD) indicates that paternal exposure to adverse environment could alter the epigenetic modification in germ line, increasing the disease susceptibility in offspring or even in subsequent generations. p,p'-Dichlorodiphenyldichloroethylene (p,p'-DDE) is an anti-androgenic chemical and male reproductive toxicant. Gestational p,p'-DDE exposure could impair reproductive development and fertility in male offspring. However, the effect of paternal p,p'-DDE exposure on fertility in male offspring remains uncovered. From postnatal day (PND) 35 to 119, male rats (F0) were given 10 mg/body weight (b.w.) p,p'-DDE or corn oil by gavage. Male rats were then mated with the control females to generate male offspring. On PND35, the male offspring were divided into 4 groups according whether to be given the high-fat diet (HF): corn oil treatment with control diet (C-C), p,p'-DDE treatment with control diet (DDE-C), corn oil treatment with high-fat diet (C-HF) or p,p'-DDE treatment with high-fat diet (DDE-HF) for 35 days. Our results indicated that paternal p,p'-DDE exposure did not affect the male fertility of male offspring directly, but decreased sperm quality and induced testicular apoptosis after the high-fat diet treatment. Further analysis demonstrated that paternal exposure to p,p'-DDE and pre-pubertal high-fat diet decreased sperm Igf2 DMR2 methylation and gene expression in male offspring. Hence, paternal exposure to p,p'-DDE and pre-pubertal high-fat diet increases the susceptibility to male fertility impairment and sperm Igf2 DMR2 hypo-methylation in male offspring, posing a significant implication in the disease etiology.
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Affiliation(s)
- Liping Lu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yuzhou Cheng
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Wei Wu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Lijun Wang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Shuqi Li
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Qianyu Li
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Liangjing Chen
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Jianyun Zhang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Rong Chen
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Xiaohua Tan
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yu Hong
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Lei Yang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yang Song
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China.
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6
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Feinberg JI, Schrott R, Ladd-Acosta C, Newschaffer CJ, Hertz-Picciotto I, Croen LA, Daniele Fallin M, Feinberg AP, Volk HE. Epigenetic changes in sperm are associated with paternal and child quantitative autistic traits in an autism-enriched cohort. Mol Psychiatry 2024; 29:43-53. [PMID: 37100868 DOI: 10.1038/s41380-023-02046-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 04/28/2023]
Abstract
There is a need to consider paternal contributions to autism spectrum disorder (ASD) more strongly. Autism etiology is complex, and heritability is not explained by genetics alone. Understanding paternal gametic epigenetic contributions to autism could help fill this knowledge gap. In the present study, we explored whether paternal autistic traits, and the sperm epigenome, were associated with autistic traits in children at 36 months enrolled in the Early Autism Risk Longitudinal Investigation (EARLI) cohort. EARLI is a pregnancy cohort that recruited and enrolled pregnant women in the first half of pregnancy who already had a child with ASD. After maternal enrollment, EARLI fathers were approached and asked to provide a semen specimen. Participants were included in the present study if they had genotyping, sperm methylation data, and Social Responsiveness Scale (SRS) score data available. Using the CHARM array, we performed genome-scale methylation analyses on DNA from semen samples contributed by EARLI fathers. The SRS-a 65-item questionnaire measuring social communication deficits on a quantitative scale-was used to evaluate autistic traits in EARLI fathers (n = 45) and children (n = 31). We identified 94 significant child SRS-associated differentially methylated regions (DMRs), and 14 significant paternal SRS-associated DMRs (fwer p < 0.05). Many child SRS-associated DMRs were annotated to genes implicated in ASD and neurodevelopment. Six DMRs overlapped across the two outcomes (fwer p < 0.1), and, 16 DMRs overlapped with previous child autistic trait findings at 12 months of age (fwer p < 0.05). Child SRS-associated DMRs contained CpG sites independently found to be differentially methylated in postmortem brains of individuals with and without autism. These findings suggest paternal germline methylation is associated with autistic traits in 3-year-old offspring. These prospective results for autism-associated traits, in a cohort with a family history of ASD, highlight the potential importance of sperm epigenetic mechanisms in autism.
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Affiliation(s)
- Jason I Feinberg
- Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Rose Schrott
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Christine Ladd-Acosta
- Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Craig J Newschaffer
- Department of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, State College, PA, USA
| | - Irva Hertz-Picciotto
- Department of Public Health Sciences, MIND (Medical Investigations of Neurodevelopmental Disorders) Institute, University of California, Davis, CA, USA
| | - Lisa A Croen
- Autism Research Program, Division of Research, Kaiser Permanente, Oakland, CA, USA
| | - M Daniele Fallin
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Andrew P Feinberg
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- Center for Epigenetics, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Heather E Volk
- Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Lund K, Garvik OS, Aagaard SM, Jølving LR, Larsen MD, Damkier P, Nørgård BM. Paternal preconception exposure to non-steroid anti-inflammatory drugs or opioids and adverse birth outcomes: A nationwide registry-based cohort study. Andrology 2023. [PMID: 37941509 DOI: 10.1111/andr.13551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/13/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND AND AIM Paternal use of analgesics during the time of conception and adverse birth outcomes are poorly studied. We investigated the association between paternal exposure to non-steroid anti-inflammatory drugs and opioids within 3 months before the date of conception and the risk of adverse birth outcomes (preterm birth, small for gestational age, low Apgar score, and major congenital malformations). METHODS We used nationwide data from the Danish health registers. We included information on all singleton live births, and their fathers and mothers from 1997 to 2018. We created two exposed cohorts, children with preconception paternal exposure to (1) non-steroid anti-inflammatory drugs and (2) opioids. The unexposed cohort was children without preconception paternal exposure to non-steroid anti-inflammatory drugs or opioids, and we performed a sub-analysis against paternal use of acetaminophen (paracetamol). We used logistic regression models to estimate the odds ratios of adverse birth outcomes including 95% confidence intervals. RESULTS We identified 1,260,934 children, 45,667 children with paternal exposure to non-steroid anti-inflammatory drugs, 10,086 children with paternal exposure to opioids, and 1,205,181 unexposed children. The adjusted odds ratio for preterm birth was 1.08 (95% confidence interval, 1.03-1.13) after paternal exposure to non-steroid anti-inflammatory drugs and 1.21 (95% confidence interval, 1.08-1.35) after paternal exposure to opioids. The adjusted odds ratio for small for gestational age was 1.09 (95% confidence interval, 1.03-1.17) after paternal exposure to non-steroid anti-inflammatory drugs, and 1.03 (95% confidence interval, 0.88-1.21) after paternal exposure to opioids. We found null-associations for a low Apgar score and major congenital malformations. Estimates were attenuated when compared against paternal paracetamol exposure. CONCLUSIONS Overall, we found null-associations across the comparisons made. Weak associations were found for paternal exposure to non-steroid anti-inflammatory drugs or opioids and preterm birth and small for gestational age, but not with low Apgar score or major congenital malformation. All associations were attenuated when compared against an active comparator of paternal paracetamol exposure. The effect sizes were small and less likely to be of clinical relevance.
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Affiliation(s)
- Ken Lund
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | | | - Signe Marie Aagaard
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
| | - Line Riis Jølving
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Michael Due Larsen
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Per Damkier
- Department of Clinical Pharmacology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Pharmacology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Bente Mertz Nørgård
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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8
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Oluwayiose OA, Houle E, Whitcomb BW, Suvorov A, Rahil T, Sites CK, Krawetz SA, Visconti PE, Pilsner JR. Urinary phthalate metabolites and small non-coding RNAs from seminal plasma extracellular vesicles among men undergoing infertility treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121529. [PMID: 37003585 DOI: 10.1016/j.envpol.2023.121529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 02/24/2023] [Accepted: 03/27/2023] [Indexed: 05/21/2023]
Abstract
Non-coding RNA (ncRNA) cargo of extracellular vesicles (EVs) in the male reproductive tract play critical roles in semen quality and emerging evidence suggests their susceptibility to environmental factors. Male phthalate exposures have been linked to poor semen quality, sperm DNA methylation profiles and embryo development; however, there is limited evidence on their potential impact on EV ncRNAs profiles. We evaluated the association between urinary phthalate metabolites and small ncRNAs (sncRNAs) of seminal plasma EVs (spEV) among men receiving clinical infertility care. We conducted sncRNA sequencing of EVs in 96 seminal plasma samples collected from the Sperm Environmental Epigenetics and Development Study (SEEDS). Sequencing reads were mapped to human transcriptome databases using STAR. Urinary metabolite concentrations of thirteen phthalates and two DiNCH, a phthalate alternative, were measured via tandem mass spectrometry. Associations with normalized counts were assessed using EdgeR (FDR<0.05) adjusting for urinary dilution via specific gravity, age, BMI, batch, and biotype-specific total counts. Select metabolites, MEOHP, MECPP, ∑DEHP, MCPP, MCNP, MCOP, were negatively (p < 0.05) correlated with miRNA relative abundance. Similarly, nine metabolites including MEOHP, MECPP, MEHP, MCPP, MHBP, MHiNCH, MiBP, MEHHP, MCOP and ∑DEHP were associated (q < 0.05) with normalized counts from 23 unique ncRNA transcripts (7 miRNAs (pre & mature); 6 tRFs; and 10 piRNAs), most (78%) of which displayed increased expression patterns. miRNA and tRFs gene targets were enriched in vesicle-mediated transport and developmental-related ontology terms, such as tyrosine kinase, head development, and cell morphogenesis. Six genes (MAPK1, BMPR1A/2, PTEN, TGFBR2, TP53 and APP) were present in all the ontology terms and predicted to form protein association networks. piRNAs were annotated to pseudogenes of genes important in EV cargo transfer and embryonic development. This is the first study to associate phthalate exposures to altered spEV sncRNA profiles. Future studies are needed to determine their impact on reproductive outcomes.
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Affiliation(s)
- Oladele A Oluwayiose
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA
| | - Emily Houle
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA
| | - Brian W Whitcomb
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, MA, USA
| | - Tayyab Rahil
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, UMass Chan-Baystate, 759 Chestnut Street, Springfield, MA, USA
| | - Cynthia K Sites
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, UMass Chan-Baystate, 759 Chestnut Street, Springfield, MA, USA
| | - Stephen A Krawetz
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA; Center for Molecular Medicine and Genetics, Wayne State School of Medicine, USA
| | - Pablo E Visconti
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, 661 N. Pleasant St, Amherst, MA, 01003, USA
| | - J Richard Pilsner
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48201, USA.
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9
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Abadjieva D, Georgiev B, Gerzilov V, Tsvetkova I, Taushanova P, Todorova K, Hayrabedyan S. Machine Learning Approach for Muscovy Duck ( Cairina moschata) Semen Quality Assessment. Animals (Basel) 2023; 13:ani13101596. [PMID: 37238026 DOI: 10.3390/ani13101596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/30/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
This study aimed to develop a comprehensive approach for assessing fresh ejaculate from Muscovy duck (Cairina moschata) drakes to fulfil the requirements of artificial insemination in farm practices. The approach combines sperm kinetics (CASA) with non-kinetic parameters, such as vitality, enzyme activities (alkaline phosphatase (AP), creatine kinase (CK), lactate dehydrogenase (LDH), and γ-glutamyl-transferase (GGT)), and total DNA methylation as training features for a set of machine learning (ML) models designed to enhance the predictive capacity of sperm parameters. Samples were classified based on their progressive motility and DNA methylation features, exhibiting significant differences in total and progressive motility, curvilinear velocity (VCL), velocity of the average path (VAP), linear velocity (VSL), amplitude of lateral head displacement (ALH), beat-cross frequency (BCF), and live normal sperm cells in favour of fast motility ones. Additionally, there were significant differences in enzyme activities for AP and CK, with correlations to LDH and GGT levels. Although motility showed no correlation with total DNA methylation, ALH, wobble of the curvilinear trajectory (WOB), and VCL were significantly different in the newly introduced classification for "suggested good quality", where both motility and methylation were high. The performance differences observed while training various ML classifiers using different feature subsets highlight the importance of DNA methylation for achieving more accurate sample quality classification, even though there is no correlation between motility and DNA methylation. The parameters ALH, VCL, triton extracted LDH, and VAP were top-ranking for "suggested good quality" predictions by the neural network and gradient boosting models. In conclusion, integrating non-kinetic parameters into machine-learning-based sample classification offers a promising approach for selecting kinetically and morphologically superior duck sperm samples that might otherwise be hindered by a predominance of lowly methylated cells.
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Affiliation(s)
- Desislava Abadjieva
- Department of Immunoneuroendocrinology, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
| | - Boyko Georgiev
- Department of Immunoneuroendocrinology, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
| | - Vasko Gerzilov
- Department of Animal Science, Agricultural University, 12, Mendeleev Str., 4000 Plovdiv, Bulgaria
| | - Ilka Tsvetkova
- Reproductive OMICS Laboratory, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
| | - Paulina Taushanova
- Department of Immunoneuroendocrinology, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
| | - Krassimira Todorova
- Reproductive OMICS Laboratory, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
| | - Soren Hayrabedyan
- Reproductive OMICS Laboratory, Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Bul. Tzarigradsko Shosse 73, 1113 Sofia, Bulgaria
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10
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Oluwayiose OA, Houle E, Whitcomb BW, Suvorov A, Rahil T, Sites CK, Krawetz SA, Visconti P, Pilsner JR. Altered non-coding RNA profiles of seminal plasma extracellular vesicles of men with poor semen quality undergoing in vitro fertilization treatment. Andrology 2023; 11:677-686. [PMID: 36111950 PMCID: PMC10017372 DOI: 10.1111/andr.13295] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/17/2022] [Accepted: 09/07/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Currently, the precise mechanisms that underline male infertility are still unclear. Accumulating data implicate non-coding RNA cargo of seminal plasma extracellular vesicles due to their association with poor semen quality and higher expression levels relative to vesicle-free seminal plasma. METHOD We assessed sperm-free seminal plasma extracellular vesicle non-coding RNA profiles from 91 semen samples collected from male participants of couples seeking infertility treatment. Men were classified into two groups (poor, n = 32; normal, n = 59) based on World Health Organization semen cutoffs. Small RNA sequencing reads were mapped to standard biotype-specific transcriptomes in the order micro RNA > transfer RNA > piwi-interacting RNA > ribosomal RNA > ribosomal RNA > circular RNA > long non-coding RNA using STAR. Differential expression of normalized non-coding RNA read counts between the two groups was conducted by EdgeR (Fold change ≥1.5 and (false discovery rate [FDR] < 0.05). RESULT Small RNA sequencing identified a wide variety of seminal plasma extracellular vesicle non-coding RNA biotypes including micro RNA, ribosomal RNAs, piwi-interacting RNAs, transfer RNA, long non-coding RNAs as well as circular RNAs, and fragments associated with pseudogenes, and nonsense-mediated decay. The expression levels of 57 seminal plasma extracellular vesicle non-coding RNAs (micro RNA: 6, piwi-interacting RNA: 4, ribosomal RNA: 6, circular RNA: 34, and long non-coding RNA: 7) were altered in men with poor semen quality relative to normal semen parameters, many (60%) of which were circular RNA species. Ontology analysis of differentially expressed micro RNAs and circular RNAs showed enrichment in functional terms related to cellular communication and early development. CONCLUSION This is the first study to generate comprehensive seminal plasma extracellular vesicle non-coding RNA profiles in a clinical setting and to determine the differences between men with normal and abnormal semen parameters. Thus, our study suggests that seminal plasma extracellular vesicle non-coding RNAs may represent novel biomarkers of male reproductive phenotypes.
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Affiliation(s)
- Oladele A. Oluwayiose
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Emily Houle
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Brian W. Whitcomb
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, MA, USA
| | - Tayyab Rahil
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, UMass Chan--Baystate, 759 Chestnut Street, Springfield, MA 01199, USA
| | - Cynthia K. Sites
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, UMass Chan--Baystate, 759 Chestnut Street, Springfield, MA 01199, USA
| | - Stephen A. Krawetz
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Center for Molecular Medicine and Genetics, Wayne State School of Medicine
| | - Pablo Visconti
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, 661 N. Pleasant St, Amherst, MA 01003
| | - J. Richard Pilsner
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA
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11
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Greeson KW, Crow KMS, Edenfield RC, Easley CA. Inheritance of paternal lifestyles and exposures through sperm DNA methylation. Nat Rev Urol 2023:10.1038/s41585-022-00708-9. [PMID: 36653672 DOI: 10.1038/s41585-022-00708-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2022] [Indexed: 01/19/2023]
Abstract
Many different lifestyle factors and chemicals present in the environment are a threat to the reproductive tracts of humans. The potential for parental preconception exposure to alter gametes and for these alterations to be passed on to offspring and negatively affect embryo growth and development is of concern. The connection between maternal exposures and offspring health is a frequent focus in epidemiological studies, but paternal preconception exposures are much less frequently considered and are also very important determinants of offspring health. Several environmental and lifestyle factors in men have been found to alter sperm epigenetics, which can regulate gene expression during early embryonic development. Epigenetic information is thought to be a mechanism that evolved for organisms to pass on information about their lived experiences to offspring. DNA methylation is a well-studied epigenetic regulator that is sensitive to environmental exposures in somatic cells and sperm. The continuous production of sperm from spermatogonial stem cells throughout a man's adult life and the presence of spermatogonial stem cells outside of the blood-testis barrier makes them susceptible to environmental insults. Furthermore, altered sperm DNA methylation patterns can be maintained throughout development and ultimately result in impairments, which could predispose offspring to disease. Innovations in human stem cell-based spermatogenic models can be used to elucidate the paternal origins of health and disease.
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Affiliation(s)
- Katherine W Greeson
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA.,Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
| | - Krista M S Crow
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA.,Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
| | - R Clayton Edenfield
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA.,Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
| | - Charles A Easley
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA. .,Regenerative Bioscience Center, University of Georgia, Athens, GA, USA.
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12
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Food abundance in men before puberty predicts a range of cancers in grandsons. Nat Commun 2022; 13:7507. [PMID: 36473854 PMCID: PMC9726939 DOI: 10.1038/s41467-022-35217-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
Nutritional conditions early in human life may influence phenotypic characteristics in later generations. A male-line transgenerational pathway, triggered by the early environment, has been postulated with support from animal and a small number of human studies. Here we analyse individuals born in Uppsala Sweden 1915-29 with linked data from their children and parents, which enables us to explore the hypothesis that pre-pubertal food abundance may trigger a transgenerational effect on cancer events. We used cancer registry and cause-of-death data to analyse 3422 cancer events in grandchildren (G2) by grandparental (G0) food access. We show that variation in harvests and food access in G0 predicts cancer occurrence in G2 in a specific way: abundance among paternal grandfathers, but not any other grandparent, predicts cancer occurrence in grandsons but not in granddaughters. This male-line response is observed for several groups of cancers, suggesting a general susceptibility, possibly acquired in early embryonic development. We observed no transgenerational influence in the middle generation.
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13
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Nørgård BM, Fedder J, Jølving LR, Damkier P, Nielsen J. Adverse Birth and Child Outcomes in Children Fathered by Men Treated with Antidiabetics Prior to Conception: A Nationwide Cohort Study. J Clin Med 2022; 11:6595. [PMID: 36362820 PMCID: PMC9654141 DOI: 10.3390/jcm11216595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND The safety of fathers' use of antidiabetic drugs in terms of child outcomes is an important clinical question. We aimed to assess the risk of adverse birth and early childhood outcomes after fathers' use of antidiabetics prior to conception. METHODS A nationwide cohort study based on Danish health registries. The study comprised all live born singleton children in Denmark (1997 through 2018). Children were categorized according to fathers' filled prescriptions for antidiabetic drugs three months prior to conception. Exposed cohorts: children born after paternal use of insulin or non-insulin anti-hyperglycemic agents. The unexposed constituted children born by fathers not treated with antidiabetics prior to conception. We examined adverse birth outcomes (preterm birth, small for gestational age (SGA)), and adverse childhood outcomes in the first year of life (major congenital malformations (MCMs), and infections diagnosed at a hospital). RESULTS A total of 1,318,684 children were included. In all, 5527 children were born after paternal use of insulin, 2121 after use of non-insulin anti-hyperglycemic agents, and 1,311,036 were unexposed. After fathers' use of insulin we did not find increased risk of adverse outcomes. After fathers' use of metformin, the adjusted OR of MCMs was 1.40 (95% CI 1.11-1.76). After fathers' use of sulfonylureas, the adjusted OR of SGA was 1.80 (95% CI 1.11-2.93), and for child gastrointestinal infections the adjusted HR was 1.76 (95% CI 1.04-2.99). CONCLUSIONS Fathers' use of insulin was reassuring. Metformin and sulfonylureas were associated with selected adverse outcomes. Our findings suggest an additional 14 MCMs per 1000 fathers exposed to metformin prior to conception. As there is no meaningful supporting biological rationale, these findings should be confirmed in a different population prior to clinical consequences being drawn.
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Affiliation(s)
- Bente Mertz Nørgård
- Center for Clinical Epidemiology, Odense University Hospital, 5000 Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Jens Fedder
- Centre of Andrology and Fertility Clinic, Odense University Hospital, 5000 Odense, Denmark
- Research Unit of Gynecology and Obstetrics, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Line Riis Jølving
- Center for Clinical Epidemiology, Odense University Hospital, 5000 Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Per Damkier
- Department of Clinical Pharmacology, Odense University Hospital, 5000 Odense, Denmark
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Jan Nielsen
- Center for Clinical Epidemiology, Odense University Hospital, 5000 Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
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14
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Nørgård BM, Friedman S, Kjeldsen J, Nielsen J. The safety of paternal and maternal use of 5-aminosalicylic acid during conception and pregnancy: a nationwide cohort study. Aliment Pharmacol Ther 2022; 56:1349-1360. [PMID: 36031741 PMCID: PMC9804381 DOI: 10.1111/apt.17189] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/05/2022] [Accepted: 08/02/2022] [Indexed: 01/30/2023]
Abstract
BACKGROUND Data on the safety of paternal use of 5-aminosalicylic acid (5-ASA) prior to conception are lacking, and the safety of maternal use of 5-ASA during pregnancy has not been examined in nationwide data. AIMS To examine offspring outcomes after paternal pre-conception use of 5-ASA, and after maternal use during pregnancy METHODS: This nationwide cohort study was based on Danish health registries. The study population included live born singletons of patients with ulcerative colitis (UC) or Crohn's disease (CD). Paternal exposure included 2168 children fathered by men treated with 5-ASA, and 7732 unexposed. Maternal exposure included 3618 children exposed in utero to 5-ASA, and 7128 unexposed. The outcomes were pre-term birth, small for gestational age (SGA), low Apgar score and major congenital abnormalities (CAs) according to EUROCAT guidelines. RESULTS The vast majority of fathers and mothers used mesalazine. In children fathered by men with UC using 5-ASA, we found no increased risk of pre-term birth, SGA or low Apgar score. The hazard ratio (HR) of CAs was 1.30 (95% CI 0.92-1.85). In children of fathers with CD, the odds ratio (OR) of SGA was 1.52 (95% CI 0.65-3.55). After maternal 5-ASA exposure, the OR of SGA in children of women with UC was 1.46 (95% CI: 0.93-2.30); for CAs in children of women with CD, HR was 1.44 (95% CI 0.84-2.47). CONCLUSIONS Paternal and maternal use of 5-ASA was safe across offspring outcomes; none of the findings reached statistical significance. The safety of 5-ASA formulations that are used infrequently cannot be settled here.
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Affiliation(s)
- Bente Mertz Nørgård
- Center for Clinical EpidemiologyOdense University HospitalOdense CDenmark,Research Unit of Clinical Epidemiology, Department of Clinical ResearchUniversity of Southern DenmarkOdense CDenmark
| | - Sonia Friedman
- Center for Clinical EpidemiologyOdense University HospitalOdense CDenmark,Center for Crohn's and Colitis, Brigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Jens Kjeldsen
- Department of Medical Gastroenterology SOdense University HospitalOdense CDenmark,Research Unit of Medical Gastroenterology, Department of Clinical ResearchUniversity of Southern DenmarkOdense CDenmark
| | - Jan Nielsen
- Center for Clinical EpidemiologyOdense University HospitalOdense CDenmark,Research Unit of Clinical Epidemiology, Department of Clinical ResearchUniversity of Southern DenmarkOdense CDenmark
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15
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Schrott R, Greeson KW, King D, Crow KMS, Easley CA, Murphy SK. Cannabis alters DNA methylation at maternally imprinted and autism candidate genes in spermatogenic cells. Syst Biol Reprod Med 2022; 68:357-369. [PMID: 35687495 PMCID: PMC10032331 DOI: 10.1080/19396368.2022.2073292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 04/18/2022] [Accepted: 04/23/2022] [Indexed: 10/18/2022]
Abstract
Cannabis use in the United States is increasing, with highest consumption among men at their peak reproductive years. We previously demonstrated widespread changes in sperm DNA methylation with cannabis exposure in humans and rats, including genes important in neurodevelopment. Here, we use an in vitro human spermatogenesis model to recapitulate chronic cannabis use and assess DNA methylation at imprinted and autism spectrum disorder (ASD) candidate genes in spermatogonial stem cell (SSC)- and spermatid-like cells. Methylation at maternally imprinted genes SGCE and GRB10 was significantly altered in SSC- and spermatid-like cells, respectively, while PEG3 was significantly differentially methylated in spermatid-like cells. Two of ten randomly selected ASD candidate genes, HCN1 and NR4A2, had significantly altered methylation with cannabis exposure in SSC-like cells. These results support our findings in human cohorts and provide a new tool with which to gain mechanistic insights into the association between paternal cannabis use and risk of ASD in offspring.
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Affiliation(s)
- Rose Schrott
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27701, USA
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC, 27701, USA
| | - Katherine W. Greeson
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, 30602, USA
- Regenerative Bioscience Center, University of Georgia, Athens, GA, 30602, USA
| | - Dillon King
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27701, USA
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC, 27701, USA
| | - Krista M. Symosko Crow
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, 30602, USA
- Regenerative Bioscience Center, University of Georgia, Athens, GA, 30602, USA
| | - Charles A. Easley
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, 30602, USA
- Regenerative Bioscience Center, University of Georgia, Athens, GA, 30602, USA
| | - Susan K. Murphy
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27701, USA
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC, 27701, USA
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16
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Xiong B, Jiang Y, Wang Y, Han X, Zhang C, Zhong R, Ge W, Han B, Ge Z, Huang G, Yin S, Shen W, Sun Q, Sun Z, Zhao Y, Zhang H. LncRNA8276 primes cell‐cell adhesion for regulation of spermatogenesis. Andrology 2022; 10:1687-1701. [DOI: 10.1111/andr.13298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/23/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Bohui Xiong
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Yue Jiang
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Yandi Wang
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Xiao Han
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Cong Zhang
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Wei Ge
- College of Life Sciences Qingdao Agricultural University Qingdao 266109 P. R. China
| | - Baoquan Han
- Urology Department Peking University Shenzhen Hospital Shenzhen 518036 China
| | - Zhaojia Ge
- College of Life Sciences Qingdao Agricultural University Qingdao 266109 P. R. China
| | - Gui'an Huang
- College of Life Sciences Qingdao Agricultural University Qingdao 266109 P. R. China
| | - Shen Yin
- College of Life Sciences Qingdao Agricultural University Qingdao 266109 P. R. China
| | - Wei Shen
- College of Life Sciences Qingdao Agricultural University Qingdao 266109 P. R. China
| | - Qingyuang Sun
- Fertility Preservation Lab, Reproductive Medicine Center Guangdong Second Provincial General Hospital Guangzhou 510317 P. R. China
| | - Zhongyi Sun
- Urology Department Shenzhen University General Hospital Shenzhen 518055 P. R. China
| | - Yong Zhao
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
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17
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Friedman S, Garvik OS, Nielsen J, Nørgård BM. Paternal use of medications for inflammatory bowel disease and the risk of hospital-diagnosed infections in the offspring: a nationwide cohort study. Aliment Pharmacol Ther 2022; 56:823-830. [PMID: 35770457 PMCID: PMC9542174 DOI: 10.1111/apt.17113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Information regarding the impact of paternal inflammatory bowel disease (IBD) medications on child outcomes is scarce. AIM To examine the risk of childhood infections associated with fathers' use of anti-inflammatory/immunosuppressive medications taken before conception. METHODS This is a nationwide cohort study based on Danish health registries, comprising all live-born singleton children born between January 1997 and February 2019 who were fathered by men with IBD. Exposed cohorts included children fathered by men treated with 5-aminosalicylates (5-ASAs), thiopurines, corticosteroids or anti-tumour necrosis factor-α (anti-TNF-α) agents within 3 months before conception. The unexposed cohort included children not exposed to paternal IBD medications. Outcomes were the first infection, diagnosed in the hospital setting in the first year of life, and from the age of 1 to 3 years. RESULTS In all, 2178 children were fathered by men exposed to 5-ASAs, 843 to thiopurines, 417 to systemic corticosteroids and 436 to anti-TNF-α agents; 6799 children were unexposed. The adjusted hazard ratio (aHR) for infections within the first year of life for 5-ASAs was 0.78 (95% CI, 0.66-0.91), thiopurines 0.89 (95% CI, 0.73-1.09), systemic corticosteroids 0.95 (95% CI, 0.70-1.29), and anti-TNF-α agents 1.17 (95% CI, 0.94-1.46). The aHR for infections from 1 to 3 years for 5-ASAs was 0.97 (95% CI, 0.83-1.13), thiopurines 0.87 (95% CI, 0.71-1.07), systemic corticosteroids 1.25 (95% CI, 0.94-1.65), and anti-TNF-α agents 0.79 (95% CI, 0.60-1.03). CONCLUSION Fathers' use of anti-inflammatory/immunosuppressive medications before conception was not significantly associated with childhood infections. These results fill an important research gap regarding paternal medication safety.
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Affiliation(s)
- Sonia Friedman
- Crohn's and Colitis Center, Brigham and Women's Hospital, BostonMassachusetts and Harvard Medical SchoolBostonMassachusettsUSA,Center for Clinical Epidemiology, Odense University Hospital, and Research Unit of Clinical Epidemiology, Institute of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Olav Sivertsen Garvik
- Center for Clinical Epidemiology, Odense University Hospital, and Research Unit of Clinical Epidemiology, Institute of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Jan Nielsen
- Center for Clinical Epidemiology, Odense University Hospital, and Research Unit of Clinical Epidemiology, Institute of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Bente Mertz Nørgård
- Crohn's and Colitis Center, Brigham and Women's Hospital, BostonMassachusetts and Harvard Medical SchoolBostonMassachusettsUSA,Center for Clinical Epidemiology, Odense University Hospital, and Research Unit of Clinical Epidemiology, Institute of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
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18
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Maggio AG, Shu HT, Laufer BI, Bi C, Lai Y, LaSalle JM, Hu VW. Elevated exposures to persistent endocrine disrupting compounds impact the sperm methylome in regions associated with autism spectrum disorder. Front Genet 2022; 13:929471. [PMID: 36035158 PMCID: PMC9403863 DOI: 10.3389/fgene.2022.929471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Environmental exposures to endocrine disrupting compounds (EDCs) such as the organochlorines have been linked with various diseases including neurodevelopmental disorders. Autism spectrum disorder (ASD) is a highly complex neurodevelopmental disorder that is considered strongly genetic in origin due to its high heritability. However, the rapidly rising prevalence of ASD suggests that environmental factors may also influence risk for ASD. In the present study, whole genome bisulfite sequencing was used to identify genome-wide differentially methylated regions (DMRs) in a total of 52 sperm samples from a cohort of men from the Faroe Islands (Denmark) who were equally divided into high and low exposure groups based on their serum levels of the long-lived organochlorine 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE), a primary breakdown product of the now banned insecticide dichlorodiphenyltrichloroethane (DDT). Aside from being considered a genetic isolate, inhabitants of the Faroe Islands have a native diet that potentially exposes them to a wide range of seafood neurotoxicants in the form of persistent organic pollutants (POPs). The DMRs were mapped to the human genome using Bismark, a 3-letter aligner used for methyl-seq analyses. Gene ontology, functional, and pathway analyses of the DMR-associated genes showed significant enrichment for genes involved in neurological functions and neurodevelopmental processes frequently impacted by ASD. Notably, these genes also significantly overlap with autism risk genes as well as those previously identified in sperm from fathers of children with ASD in comparison to that of fathers of neurotypical children. These results collectively suggest a possible mechanism involving altered methylation of a significant number of neurologically relevant ASD risk genes for introducing epigenetic changes associated with environmental exposures into the sperm methylome. Such changes may provide the potential for transgenerational inheritance of ASD as well as other disorders.
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Affiliation(s)
- Angela G. Maggio
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Henry T. Shu
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
- The Johns Hopkins University, School of Medicine, Baltimore, MD, United States
| | - Benjamin I. Laufer
- Genome Center, Perinatal Origins of Disparities Center, Environmental Health Sciences Center, Medical Microbiology and Immunology, MIND Institute, UC Davis School of Medicine, Davis, CA, United States
| | - Chongfeng Bi
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Yinglei Lai
- Department of Statistics, The George Washington University, Washington, DC, United States
| | - Janine M. LaSalle
- Genome Center, Perinatal Origins of Disparities Center, Environmental Health Sciences Center, Medical Microbiology and Immunology, MIND Institute, UC Davis School of Medicine, Davis, CA, United States
| | - Valerie W. Hu
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
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19
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Lecante LL, Gaye B, Delbes G. Impact of in Utero Rat Exposure to 17Alpha-Ethinylestradiol or Genistein on Testicular Development and Germ Cell Gene Expression. FRONTIERS IN TOXICOLOGY 2022; 4:893050. [PMID: 35722060 PMCID: PMC9201280 DOI: 10.3389/ftox.2022.893050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022] Open
Abstract
Although the decline in male fertility is believed to partially result from environmental exposures to xenoestrogens during critical developmental windows, the underlying mechanisms are still poorly understood. Experimental in utero exposures in rodents have demonstrated the negative impact of xenoestrogens on reproductive development, long-term adult reproductive function and offspring health. In addition, transcriptomic studies have demonstrated immediate effects on gene expression in fetal reproductive tissues, However, the immediate molecular effects on the developing germ cells have been poorly investigated. Here, we took advantage of a transgenic rat expressing the green fluorescent protein specifically in germ cells allowing purification of perinatal GFP-positive germ cells. Timed-pregnant rats were exposed to ethinylestradiol (EE2, 2 μg/kg/d), genistein (GE, 10 mg/kg/d) or vehicle by gavage, from gestational days (GD) 13–19; testes were sampled at GD20 or post-natal (PND) 5 for histological analysis and sorting of GFP-positive cells. While EE2-exposed females gained less weight during treatment compared to controls, neither treatment affected the number of pups per litter, sex ratio, anogenital distance, or body and gonadal weights of the offspring. Although GE significantly decreased circulating testosterone at GD20, no change was observed in either testicular histology or germ cell and sertoli cell densities. Gene expression was assessed in GFP-positive cells using Affymetrix Rat Gene 2.0 ST microarrays. Analysis of differentially expressed genes (DEGs) (p < 0.05; fold change 1.5) identified expression changes of 149 and 128 transcripts by EE2 and GE respectively at GD20, and 287 and 207 transcripts at PND5, revealing an increased effect after the end of treatment. Only about 1% of DEGs were common to both stages for each treatment. Functional analysis of coding DEG revealed an overrepresentation of olfactory transduction in all groups. In parallel, many non-coding RNAs were affected by both treatments, the most represented being small nucleolar and small nuclear RNAs. Our data suggest that despite no immediate toxic effects, fetal exposure to xenoestrogens can induce subtle immediate changes in germ cell gene expression. Moreover, the increased number of DEGs between GD20 and PND5 suggests an effect of early exposures with latent impact on later germ cell differentiation.
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20
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Štiavnická M, Chaulot-Talmon A, Perrier JP, Hošek P, Kenny DA, Lonergan P, Kiefer H, Fair S. Sperm DNA methylation patterns at discrete CpGs and genes involved in embryonic development are related to bull fertility. BMC Genomics 2022; 23:379. [PMID: 35585482 PMCID: PMC9118845 DOI: 10.1186/s12864-022-08614-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 05/05/2022] [Indexed: 02/11/2023] Open
Abstract
Background Despite a multifactorial approach being taken for the evaluation of bull semen quality in many animal breeding centres worldwide, reliable prediction of bull fertility is still a challenge. Recently, attention has turned to molecular mechanisms, which could uncover potential biomarkers of fertility. One of these mechanisms is DNA methylation, which together with other epigenetic mechanisms is essential for the fertilising sperm to drive normal embryo development and establish a viable pregnancy. In this study, we hypothesised that bull sperm DNA methylation patterns are related to bull fertility. We therefore investigated DNA methylation patterns from bulls used in artificial insemination with contrasting fertility scores. Results The DNA methylation patterns were obtained by reduced representative bisulphite sequencing from 10 high-fertility bulls and 10 low-fertility bulls, having average fertility scores of − 6.6 and + 6.5%, respectively (mean of the population was zero). Hierarchical clustering analysis did not distinguish bulls based on fertility but did highlight individual differences. Despite this, using stringent criteria (DNA methylation difference ≥ 35% and a q-value < 0.001), we identified 661 differently methylated cytosines (DMCs). DMCs were preferentially located in intergenic regions, introns, gene downstream regions, repetitive elements, open sea, shores and shelves of CpG islands. We also identified 10 differently methylated regions, covered by 7 unique genes (SFRP1, STXBP4, BCR, PSMG4, ARSG, ATP11A, RXRA), which are involved in spermatogenesis and early embryonic development. Conclusion This study demonstrated that at specific CpG sites, sperm DNA methylation status is related to bull fertility, and identified seven differently methylated genes in sperm of subfertile bulls that may lead to altered gene expression and potentially influence embryo development. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08614-5.
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Affiliation(s)
- Miriama Štiavnická
- Department of Biological Sciences, Laboratory of Animal Reproduction, Biomaterials Research Cluster, Bernal Institute, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland.
| | - Aurélie Chaulot-Talmon
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Jean-Philippe Perrier
- Department of Biological Sciences, Laboratory of Animal Reproduction, Biomaterials Research Cluster, Bernal Institute, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland
| | - Petr Hošek
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - David A Kenny
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Meath, Ireland
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Hélène Kiefer
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Sean Fair
- Department of Biological Sciences, Laboratory of Animal Reproduction, Biomaterials Research Cluster, Bernal Institute, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland
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21
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Delbes G, Blázquez M, Fernandino JI, Grigorova P, Hales BF, Metcalfe C, Navarro-Martín L, Parent L, Robaire B, Rwigemera A, Van Der Kraak G, Wade M, Marlatt V. Effects of endocrine disrupting chemicals on gonad development: Mechanistic insights from fish and mammals. ENVIRONMENTAL RESEARCH 2022; 204:112040. [PMID: 34509487 DOI: 10.1016/j.envres.2021.112040] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Over the past century, evidence has emerged that endocrine disrupting chemicals (EDCs) have an impact on reproductive health. An increased frequency of reproductive disorders has been observed worldwide in both wildlife and humans that is correlated with accidental exposures to EDCs and their increased production. Epidemiological and experimental studies have highlighted the consequences of early exposures and the existence of key windows of sensitivity during development. Such early in life exposures can have an immediate impact on gonadal and reproductive tract development, as well as on long-term reproductive health in both males and females. Traditionally, EDCs were thought to exert their effects by modifying the endocrine pathways controlling reproduction. Advances in knowledge of the mechanisms regulating sex determination, differentiation and gonadal development in fish and rodents have led to a better understanding of the molecular mechanisms underlying the effects of early exposure to EDCs on reproduction. In this manuscript, we review the key developmental stages sensitive to EDCs and the state of knowledge on the mechanisms by which model EDCs affect these processes, based on the roadmap of gonad development specific to fish and mammals.
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Affiliation(s)
- G Delbes
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada.
| | - M Blázquez
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | - J I Fernandino
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
| | | | - B F Hales
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
| | - C Metcalfe
- School of Environment, Trent University, Trent, Canada
| | - L Navarro-Martín
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - L Parent
- Université TELUQ, Montréal, Canada
| | - B Robaire
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada; Department of Obstetrics and Gynecology, McGill University, Montreal, Canada
| | - A Rwigemera
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada
| | - G Van Der Kraak
- Department of Integrative Biology, University of Guelph, Guelph, Canada
| | - M Wade
- Environmental Health Science & Research Bureau, Health Canada, Ottawa, Canada
| | - V Marlatt
- Department of Biological Sciences, Simon Fraser University, Burnaby, Canada
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22
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López-Cervantes JP, Lønnebotn M, Jogi NO, Calciano L, Kuiper IN, Darby MG, Dharmage SC, Gómez-Real F, Hammer B, Bertelsen RJ, Johannessen A, Würtz AML, Mørkve Knudsen T, Koplin J, Pape K, Skulstad SM, Timm S, Tjalvin G, Krauss-Etschmann S, Accordini S, Schlünssen V, Kirkeleit J, Svanes C. The Exposome Approach in Allergies and Lung Diseases: Is It Time to Define a Preconception Exposome? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:12684. [PMID: 34886409 PMCID: PMC8657011 DOI: 10.3390/ijerph182312684] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/30/2022]
Abstract
Emerging research suggests environmental exposures before conception may adversely affect allergies and lung diseases in future generations. Most studies are limited as they have focused on single exposures, not considering that these diseases have a multifactorial origin in which environmental and lifestyle factors are likely to interact. Traditional exposure assessment methods fail to capture the interactions among environmental exposures and their impact on fundamental biological processes, as well as individual and temporal factors. A valid estimation of exposure preconception is difficult since the human reproductive cycle spans decades and the access to germ cells is limited. The exposome is defined as the cumulative measure of external exposures on an organism (external exposome), and the associated biological responses (endogenous exposome) throughout the lifespan, from conception and onwards. An exposome approach implies a targeted or agnostic analysis of the concurrent and temporal multiple exposures, and may, together with recent technological advances, improve the assessment of the environmental contributors to health and disease. This review describes the current knowledge on preconception environmental exposures as related to respiratory health outcomes in offspring. We discuss the usefulness and feasibility of using an exposome approach in this research, advocating for the preconception exposure window to become included in the exposome concept.
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Affiliation(s)
- Juan Pablo López-Cervantes
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
| | - Marianne Lønnebotn
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
| | - Nils Oskar Jogi
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (F.G.-R.); (R.J.B.)
| | - Lucia Calciano
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, 37134 Verona, Italy; (L.C.); (S.A.)
| | | | - Matthew G. Darby
- Institute of Infectious Disease and Molecular Medicine and Division of Immunology, University of Cape Town, Cape Town 7925, South Africa;
| | - Shyamali C. Dharmage
- School of Population and Global Health, University of Melbourne, Melbourne, VIC 3010, Australia; (S.C.D.); (J.K.)
| | - Francisco Gómez-Real
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (F.G.-R.); (R.J.B.)
- Department of Obstetrics and Gynecology, Haukeland University Hospital, 5053 Bergen, Norway
| | - Barbara Hammer
- Department of Pulmonology, Medical University of Vienna, 1090 Vienna, Austria;
| | | | - Ane Johannessen
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
| | - Anne Mette Lund Würtz
- Danish Ramazzini Centre, Department of Public Health—Work, Environment and Health, Aarhus University, 8000 Aarhus, Denmark; (A.M.L.W.); (K.P.); (V.S.)
| | - Toril Mørkve Knudsen
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (F.G.-R.); (R.J.B.)
| | - Jennifer Koplin
- School of Population and Global Health, University of Melbourne, Melbourne, VIC 3010, Australia; (S.C.D.); (J.K.)
- Murdoch Children’s Research Institute, Melbourne, VIC 3052, Australia
| | - Kathrine Pape
- Danish Ramazzini Centre, Department of Public Health—Work, Environment and Health, Aarhus University, 8000 Aarhus, Denmark; (A.M.L.W.); (K.P.); (V.S.)
| | - Svein Magne Skulstad
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
| | - Signe Timm
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense, Denmark;
- Research Unit, Kolding Hospital, University Hospital of Southern Denmark, 6000 Kolding, Denmark
| | - Gro Tjalvin
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
| | | | - Simone Accordini
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, 37134 Verona, Italy; (L.C.); (S.A.)
| | - Vivi Schlünssen
- Danish Ramazzini Centre, Department of Public Health—Work, Environment and Health, Aarhus University, 8000 Aarhus, Denmark; (A.M.L.W.); (K.P.); (V.S.)
- National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
| | - Jorunn Kirkeleit
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
| | - Cecilie Svanes
- Center for International Health, Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway; (M.L.); (A.J.); (G.T.); (J.K.); (C.S.)
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway; (N.O.J.); (T.M.K.); (S.M.S.)
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23
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Oluwayiose OA, Marcho C, Wu H, Houle E, Krawetz SA, Suvorov A, Mager J, Richard Pilsner J. Paternal preconception phthalate exposure alters sperm methylome and embryonic programming. ENVIRONMENT INTERNATIONAL 2021; 155:106693. [PMID: 34120004 PMCID: PMC8292217 DOI: 10.1016/j.envint.2021.106693] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 05/21/2023]
Abstract
Preconception environmental conditions have been demonstrated to shape sperm epigenetics and subsequently offspring health and development. Our previous findings in humans showed that urinary anti-androgenic phthalate metabolites in males were associated with altered sperm methylation and blastocyst-stage embryo development. To corroborate this, we examined the effect of preconception exposure to di(2-ethylhexyl) phthalate (DEHP) on genome-wide DNA methylation and gene expression profiles in mice. Eight-week old C57BL/6J male mice were exposed to either a vehicle control, low, or high dose of DEHP (2.5 and 25 mg/kg/weight, respectively) for 67 days (~2 spermatogenic cycles) and were subsequently mated with unexposed females. Reduced representation bisulfite sequencing (RRBS) of epididymal sperm was performed and gastrulation stage embryos were collected for RRBS and transcriptome analyses in both embryonic and extra-embryonic lineages. Male preconception DEHP exposure resulted in 704 differentially methylated regions (DMRs; q-value < 0.05; ≥10% methylation change) in sperm, 1,716 DMRs in embryonic, and 3,181 DMRs in extra-embryonic tissue. Of these, 29 DMRs overlapped between sperm and F1 tissues, half of which showed concordant methylation changes between F0 and F1 generations. F1 transcriptomes at E7.5 were also altered by male preconception DEHP exposure including developmental gene families such as Hox, Gata, and Sox. Additionally, gene ontology analyses of DMRs and differentially expressed genes showed enrichment of multiple developmental processes including embryonic development, pattern specification and morphogenesis. These data indicate that spermatogenesis in adult may represent a sensitive window in which exposure to DEHP alters the sperm methylome as well as DNA methylation and gene expression in the developing embryo.
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Affiliation(s)
- Oladele A Oluwayiose
- Department of Environmental Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Chelsea Marcho
- Department of Environmental Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA; Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, NY, USA
| | - Emily Houle
- Department of Environmental Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Stephen A Krawetz
- Department of Obstetrics and Gynecology & Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - J Richard Pilsner
- Department of Environmental Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA; Department of Obstetrics and Gynecology & Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA.
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24
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Hines LA, Spry EA, Moreno-Betancur M, Mohamad Husin H, Becker D, Middleton M, Craig JM, Doyle LW, Olsson CA, Patton G. Cannabis and tobacco use prior to pregnancy and subsequent offspring birth outcomes: a 20-year intergenerational prospective cohort study. Sci Rep 2021; 11:16826. [PMID: 34413325 PMCID: PMC8376878 DOI: 10.1038/s41598-021-95460-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/20/2021] [Indexed: 11/15/2022] Open
Abstract
There is increasing evidence that the life-course origins of health and development begin before conception. We examined associations between timing and frequency of preconception cannabis and tobacco use and next generation preterm birth (PTB), low birth weight (LBW) and small for gestational age. 665 participants in a general population cohort were repeatedly assessed on tobacco and cannabis use between ages 14-29 years, before pregnancy. Associations were estimated using logistic regression. Preconception parent (either maternal or paternal) daily cannabis use age 15-17 was associated with sixfold increases in the odds of offspring PTB (aOR 6.65, 95% CI 1.92, 23.09), and offspring LBW (aOR 5.84, 95% CI 1.70-20.08), after adjusting for baseline sociodemographic factors, parent sex, offspring sex, family socioeconomic status, parent mental health at baseline, and concurrent tobacco use. There was little evidence of associations with preconception parental cannabis use at other ages or preconception parental tobacco use. Findings support the hypothesis that the early life origins of growth begin before conception and provide a compelling rationale for prevention of frequent use during adolescence. This is pertinent given liberalisation of cannabis policy.
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Affiliation(s)
- Lindsey A Hines
- Centre for Academic Mental Health, Population Health Sciences Institute, University of Bristol, Bristol, UK.
- MRC Integrative Epidemiology Unit, Population Health Sciences Institute, University of Bristol, Bristol, UK.
| | - Elizabeth A Spry
- Centre for Social and Early Emotional Development, Faculty of Health, Deakin University, Melbourne, Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia
| | - Margarita Moreno-Betancur
- University of Melbourne, Melbourne, Australia
- Clinical Epidemiology and Biostatistics Unit, Murdoch Children's Research Institute, Melbourne, Australia
| | - Hanafi Mohamad Husin
- Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia
| | - Denise Becker
- Biostatistics Unit, Faculty of Health, Deakin University, Melbourne, Australia
| | - Melissa Middleton
- Clinical Epidemiology and Biostatistics Unit, Murdoch Children's Research Institute, Melbourne, Australia
| | - Jeffrey M Craig
- Centre for Molecular and Medical Research, Deakin University School of Medicine, Geelong, Australia
| | - Lex W Doyle
- Department of Obstetrics and Gynaecology, The Royal Women's Hospital, University of Melbourne, Melbourne, Australia
- Clinical Sciences, Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paedatrics, University of Melbourne, Melbourne, Australia
| | - Craig A Olsson
- Centre for Social and Early Emotional Development, Faculty of Health, Deakin University, Melbourne, Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia
| | - George Patton
- Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia
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25
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Consequences of Paternal Nutrition on Offspring Health and Disease. Nutrients 2021; 13:nu13082818. [PMID: 34444978 PMCID: PMC8400857 DOI: 10.3390/nu13082818] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 12/30/2022] Open
Abstract
It is well established that the maternal diet during the periconceptional period affects the progeny’s health. A growing body of evidence suggests that the paternal diet also influences disease onset in offspring. For many years, sperm was considered only to contribute half of the progeny’s genome. It now appears that it also plays a crucial role in health and disease in offspring’s adult life. The nutritional status and environmental exposure of fathers during their childhood and/or the periconceptional period have significant transgenerational consequences. This review aims to describe the effects of various human and rodent paternal feeding patterns on progeny’s metabolism and health, including fasting or intermittent fasting, low-protein and folic acid deficient food, and overnutrition in high-fat and high-sugar diets. The impact on pregnancy outcome, metabolic pathways, and chronic disease onset will be described. The biological and epigenetic mechanisms underlying the transmission from fathers to their progeny will be discussed. All these data provide evidence of the impact of paternal nutrition on progeny health which could lead to preventive diet recommendations for future fathers.
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26
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Merrill SM, Moore SR, Gladish N, Giesbrecht GF, Dewey D, Konwar C, MacIssac JL, Kobor MS, Letourneau NL. Paternal adverse childhood experiences: Associations with infant DNA methylation. Dev Psychobiol 2021; 63:e22174. [PMID: 34333774 DOI: 10.1002/dev.22174] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 06/17/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022]
Abstract
Adverse childhood experiences (ACEs), or cumulative childhood stress exposures, such as abuse, neglect, and household dysfunction, predict later health problems in both the exposed individuals and their offspring. One potential explanation suggests exposure to early adversity predicts epigenetic modification, especially DNA methylation (DNAm), linked to later health. Stress experienced preconception by mothers may associate with DNAm in the next generation. We hypothesized that fathers' exposure to ACEs also associates with their offspring DNAm, which, to our knowledge, has not been previously explored. An epigenome-wide association study (EWAS) of blood DNAm (n = 45) from 3-month-old infants was regressed onto fathers' retrospective ACEs at multiple Cytosine-phosphate-Guanosine (CpG) sites to discover associations. This accounted for infants' sex, age, ethnicity, cell type proportion, and genetic variability. Higher ACE scores associated with methylation values at eight CpGs. Post-hoc analysis found no contribution of paternal education, income, marital status, and parental postpartum depression, but did with paternal smoking and BMI along with infant sleep latency. These same CpGs also contributed to the association between paternal ACEs and offspring attention problems at 3 years. Collectively, these findings suggested there were biological associations with paternal early life adversity and offspring DNAm in infancy, potentially affecting offspring later childhood outcomes.
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Affiliation(s)
- Sarah M Merrill
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Sarah R Moore
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Nicole Gladish
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Gerald F Giesbrecht
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.,Owerko Centre at the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Deborah Dewey
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.,Owerko Centre at the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada.,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Chaini Konwar
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Julia L MacIssac
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Michael S Kobor
- BC Children's Hospital Research Institute Vancouver, Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada.,Program in Child and Brain Development, CIFAR, Toronto, Ontario, Canada
| | - Nicole L Letourneau
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.,Owerko Centre at the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada.,Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada.,Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
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27
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Shtratnikova V, Naumov V, Bezuglov V, Zheludkevich A, Smigulina L, Dikov Y, Denisova T, Suvorov A, Pilsner JR, Hauser R, Krawetz SA, Sergeyev O. Optimization of small RNA extraction and comparative study of NGS library preparation from low count sperm samples. Syst Biol Reprod Med 2021; 67:230-243. [PMID: 34082629 DOI: 10.1080/19396368.2021.1912851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Recent studies demonstrate that sperm epigenome is a vehicle that conveys paternal experiences to offspring phenotype. That evidence triggers interest of both experimental and epidemiological studies of epigenetic markers in sperm. Since samples are often unique in epidemiological studies, a careful and efficient use of the material is a critical requirement. The goal of this study was to provide optimization of methods for the isolation of small RNAs from spermatozoa and library preparation for sequencing. A total 67 fractionated sperm samples from the Russian Children's Study biobank prospectively collected at 18-20 years of age were used to isolate small RNAs with median (IQR) input total sperm count 17.0 (7.4-35.9) million. Twenty-four pairs of libraries were prepared using the NEBNext and NEXTFlex kits, 19 libraries using NEBNext and 6 using NEXTFlex. All libraries were sequenced on NextSeq 500, and the results were evaluated as a function of the number of small non-coding RNA (sncRNA) detected, quality parameters of sequencing libraries, as well as technical features of sample preparation. Although the same amount of miRNA input was used for NEBNext and NEXTFlex libraries, the concentration of DNA in NEBNext libraries was significantly higher in comparison with NEXTFlex libraries. In high input (sperm count >28 million and more than 25 ng miRNA in library) NEXTFlex Small RNA-Seq kit detected more microRNAs. In low input, the NEBNext proved more effective. The tricks and traps to protocol optimization are presented, including an efficient and effector gel-based system for the removal of sequencing library adaptors.
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Affiliation(s)
- Victoria Shtratnikova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Vladimir Naumov
- Kulakov National Medical Research Center of Obstetrics, Gynecology & Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Vitaly Bezuglov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | | | - Luidmila Smigulina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Chapaevsk Medical Association, Chapaevsk, Russia
| | - Yury Dikov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Chapaevsk Medical Association, Chapaevsk, Russia
| | - Tatiana Denisova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Chapaevsk Medical Association, Chapaevsk, Russia
| | - Alexander Suvorov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Department of Environmental Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - J Richard Pilsner
- Department of Environmental Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Stephen A Krawetz
- Department of Obstetrics and Gynecology, Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Oleg Sergeyev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Chapaevsk Medical Association, Chapaevsk, Russia
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28
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Garcia MS, Orcini WA, Peruquetti RL, Perobelli JE. New approach for reproductive toxicity assessment: chromatoid bodies as a target for methylmercury and polychlorinated biphenyls in prepubertal male rats. Reprod Fertil Dev 2021; 32:914-922. [PMID: 32586421 DOI: 10.1071/rd19447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 05/04/2020] [Indexed: 11/23/2022] Open
Abstract
This study investigated the reproductive toxicity of methylmercury (MeHg) and Aroclor (Sigma-Aldrich), alone or in combination, following exposure of prepubertal male rats considering the chromatoid body (CB) as a potential target. The CB is an important molecular regulator of mammalian spermatogenesis, primarily during spermatid cytodifferentiation. Male Wistar rats were exposed to MeHg and/or Aroclor , according the following experimental design: control group, which was administered in corn oil (vehicle) only; MeHg-treated group, which was administered 0.5mg kg-1 day-1 MeHg; Aroclor-treated group, which was administered 1mg kg-1 day-1 Aroclor; Mix-LD, group which was administered a low-dose mixture of MeHg (0.05mg kg-1 day-1) and Aroclor (0.1mg kg-1 day-1); and Mix-HD group, which was administered a high-dose mixture of MeHg (0.5mg kg-1 day-1) and Aroclor (1.0mg kg-1 day-1). MeHg was diluted in distilled water and Aroclor was made up in corn oil (volume 1mL kg-1). Rats were administered the different treatments from PND23 to PND53 by gavage, . The morphophysiology of CBs was analysed, together with aspects of steroid hormones status and regulation, just after the last treatment on PND53. In addition, the long-term effects on sperm parameters were assessed in adult animals. MeHg exposure increased mouse VASA homologue (MVH) protein levels in seminiferous tubules, possibly affecting the epigenetic status of germ cells. Aroclor produced morphological changes to CB assembly, which may explain the observed morphological defects to the sperm flagellum and the consequent decrease in sperm motility. There were no clear additive or synergistic effects between MeHg and Aroclor when administered in combination. In conclusion, this study demonstrates that MeHg and Aroclor have independent deleterious effects on the developing testis, causing molecular and morphological changes in CBs. To the best of our knowledge, this is the first study to show that CBs are targets for toxic agents.
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Affiliation(s)
- M S Garcia
- School of Health Sciences, Sagrado Coração University, Rua Irmã Arminda, 10-50, Jd., Brasil, 17011-160, Bauru, São Paulo, Brazil; and Experimental Toxicology Laboratory, Department of Marine Sciences, Federal University of São Paulo, Campus Baixada Santista, Rua Dr Carvalho de Mendonça, 144, Encruzilhada, 11070-102 Santos, SP, Brazil
| | - W A Orcini
- Molecular Biology and Cytogenetics Laboratory, Sagrado Coração University, Rua Irmã Arminda, 10-50, Jd., Brasil, 17011-160, Bauru, São Paulo, Brazil
| | - R L Peruquetti
- School of Health Sciences, Sagrado Coração University, Rua Irmã Arminda, 10-50, Jd., Brasil, 17011-160, Bauru, São Paulo, Brazil; and Molecular Biology and Cytogenetics Laboratory, Sagrado Coração University, Rua Irmã Arminda, 10-50, Jd., Brasil, 17011-160, Bauru, São Paulo, Brazil; and Office of the Associate Dean of Graduate Studies and Research, Sagrado Coração University, Rua Irmã Arminda, 10-50, Jd., Brasil, 17011-160, Bauru, São Paulo, Brazil
| | - J E Perobelli
- Experimental Toxicology Laboratory, Department of Marine Sciences, Federal University of São Paulo, Campus Baixada Santista, Rua Dr Carvalho de Mendonça, 144, Encruzilhada, 11070-102 Santos, SP, Brazil; and Corresponding author.
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Ayaz A, Houle E, Pilsner JR. Extracellular vesicle cargo of the male reproductive tract and the paternal preconception environment. Syst Biol Reprod Med 2021; 67:103-111. [PMID: 33630671 DOI: 10.1080/19396368.2020.1867665] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The molecular composition of extracellular vesicles (EVs) is emerging as a novel biomarker in many areas of research including reproductive health. EVs transport biological molecules such as RNA and protein to facilitate cell-to-cell communication among cells of the male reproductive tract. Human and animal studies have shown that EVs present in seminal plasma or in the male reproductive tract contain important cargo that are important for successful reproductive outcomes. Small non-coding RNAs (sncRNA) have been at the forefront of this research, and as such, they have the potential to serve as novel biomarkers of male infertility diagnosis and reproductive success. This review provides an overview of EV biosynthesis and examines the molecular payloads of seminal plasma EVs on male infertility and reproductive success as well as future research that is warranted to examine how these molecular payloads may be modified by environmental factors.
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Affiliation(s)
- Ahmet Ayaz
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Emily Houle
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - J Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
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30
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Pilsner JR, Shershebnev A, Wu H, Marcho C, Dribnokhodova O, Shtratnikova V, Sergeyev O, Suvorov A. Aging-induced changes in sperm DNA methylation are modified by low dose of perinatal flame retardants. Epigenomics 2021; 13:285-297. [PMID: 33401928 DOI: 10.2217/epi-2020-0404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aims: Paternal age is increasing in developed countries. Understanding of aging-related epigenetic changes in sperm is needed as well as factors that modify such changes. Materials & methods: Young pubertal and mature rats were exposed perinatally to vehicle or environmental xenobiotic 2,2',4,4'-tetrabromodiphenyl ether. Epididymal sperm was reduced representation bisulfite sequenced. Differentially methylated regions (DMRs) were identified via MethPipe. Results: In control animals, 5319 age-dependent DMRs were identified. Age-related DMRs were enriched for embryonic development. In exposed rats, DNA methylation was higher in young and lower in mature animals then in controls. Conclusions: Sperm methylome undergoes significant age-dependent changes, which may represent a causal link between paternal age and offspring phenotype. Environmental xenobiotics can interfere with the natural process of epigenetic aging.
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Affiliation(s)
- J Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Alex Shershebnev
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Chelsea Marcho
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | | | | | | | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA.,Federal Budget Institution of Science Central Research Institute of Epidemiology of The Federal Service on Customers' Rights Protection & Human Well-being Surveillance, Novogireevskaya .3a, Moscow 111123, Russia
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31
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Rwigemera A, El Omri-Charai R, Lecante LL, Delbes G. Dynamics in the expression of epigenetic modifiers and histone modifications in perinatal rat germ cells during de novo DNA methylation†. Biol Reprod 2020; 104:361-373. [PMID: 33324985 DOI: 10.1093/biolre/ioaa206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/06/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022] Open
Abstract
Epigenetic reprogramming during perinatal germ cell development is essential for genomic imprinting and cell differentiation; however, the actors of this key event and their dynamics are poorly understood in rats. Our study aimed to characterize the expression patterns of epigenetic modifiers and the changes in histone modifications in rat gonocytes at the time of de novo DNA methylation. Using transgenic rats expressing Green Fluorescent Protein (GFP) specifically in germ cells, we purified male gonocytes by fluorescent activated cell sorting at various stages of perinatal development and established the transcriptomic profile of 165 epigenetic regulators. Using immunofluorescence on gonad sections, we tracked six histone modifications in rat male and female perinatal germ cells over time, including methylation of histone H3 on lysines 27, 9, and 4; ubiquitination of histone H2A on lysine119; and acetylation of histone H2B on lysine 20. The results revealed the dynamics in the expression of ten-eleven translocation enzymes and DNA methyltransferases in male gonocytes at the time of de novo DNA methylation. Moreover, our transcriptomic data indicate a decrease in histone ubiquitination and methylation coinciding with the beginning of de novo DNA methylation. Decreases in H2AK119Ub and H3K27me3 were further confirmed by immunofluorescence in the male germ cells but were not consistent for all H3 methylation sites examined. Together, our data highlighted transient chromatin remodeling involving histone modifications during de novo DNA methylation. Further studies addressing how these dynamic changes in histone posttranslational modifications could guide de novo DNA methylation will help explain the complex establishment of the male germ cell epigenome.
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Affiliation(s)
- Arlette Rwigemera
- Institut national de la recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval, Quebec, Canada
| | | | - Laetitia L Lecante
- Institut national de la recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval, Quebec, Canada
| | - Geraldine Delbes
- Institut national de la recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval, Quebec, Canada
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32
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Suvorov A, Pilsner JR, Naumov V, Shtratnikova V, Zheludkevich A, Gerasimov E, Logacheva M, Sergeyev O. Aging Induces Profound Changes in sncRNA in Rat Sperm and These Changes Are Modified by Perinatal Exposure to Environmental Flame Retardant. Int J Mol Sci 2020; 21:E8252. [PMID: 33158036 PMCID: PMC7672616 DOI: 10.3390/ijms21218252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Advanced paternal age at fertilization is a risk factor for multiple disorders in offspring and may be linked to age-related epigenetic changes in the father's sperm. An understanding of aging-related epigenetic changes in sperm and environmental factors that modify such changes is needed. Here, we characterize changes in sperm small non-coding RNA (sncRNA) between young pubertal and mature rats. We also analyze the modification of these changes by exposure to environmental xenobiotic 2,2',4,4'-tetrabromodiphenyl ether (BDE-47). sncRNA libraries prepared from epididymal spermatozoa were sequenced and analyzed using DESeq 2. The distribution of small RNA fractions changed with age, with fractions mapping to rRNA and lncRNA decreasing and fractions mapping to tRNA and miRNA increasing. In total, 249 miRNA, 908 piRNA and 227 tRNA-derived RNA were differentially expressed (twofold change, false discovery rate (FDR) p ≤ 0.05) between age groups in control animals. Differentially expressed miRNA and piRNA were enriched for protein-coding targets involved in development and metabolism, while piRNA were enriched for long terminal repeat (LTR) targets. BDE-47 accelerated age-dependent changes in sncRNA in younger animals, decelerated these changes in older animals and increased the variance in expression of all sncRNA. Our results indicate that the natural aging process has profound effects on sperm sncRNA profiles and this effect may be modified by environmental exposure.
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Affiliation(s)
- Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA;
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
| | - J. Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA;
| | - Vladimir Naumov
- Bioinformatics Laboratory, Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology Ministry of Health of the Russian Federation, Oparina 4, 117997 Moscow, Russia;
| | - Victoria Shtratnikova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
| | | | - Evgeny Gerasimov
- E.I. Martsinovsky Institute of Medical Parasitology and Tropical Medicine, I.M. Sechenov First Moscow State Medical University, 20 Malaya Pirogovskaya, 119435 Moscow, Russia;
- Faculty of Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Maria Logacheva
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143028 Moscow, Russia
| | - Oleg Sergeyev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
- Chapaevsk Medical Association, Meditsinskaya Str. 3a, Samara Region, 446100 Chapaevsk, Russia
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33
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Spry EA, Wilson CA, Middleton M, Moreno-Betancur M, Doyle LW, Howard LM, Hannan AJ, Wlodek ME, Cheong JLY, Hines LA, Coffey C, Brown S, Olsson CA, Patton GC. Parental mental health before and during pregnancy and offspring birth outcomes: A 20-year preconception cohort of maternal and paternal exposure. EClinicalMedicine 2020; 27:100564. [PMID: 33150327 PMCID: PMC7599306 DOI: 10.1016/j.eclinm.2020.100564] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Preterm birth (PTB) and small for gestational age (SGA) are increasingly prevalent, with major consequences for health and development into later life. There is emerging evidence that some risk processes begin before pregnancy. We report on associations between maternal and paternal common mental disorders (CMD) before and during pregnancy and offspring PTB and SGA. METHODS 398 women with 609 infants and 267 men with 421 infants were assessed repeatedly for CMD symptoms before pregnancy between age 14 and 29 and during pregnancy. Associations between preconception and antenatal CMD symptoms and offspring gestational age/PTB and size for gestational age/SGA were estimated using linear and Poisson regression. FINDINGS In men, persistent preconception CMD across adolescence and young adulthood predicted offspring PTB after adjustment for ethnicity, education, BMI and adolescent substance use (adjusted RR 7·0, 95% CI 1·8,26·8), corresponding to a population attributable fraction of 31% of preterm births. In women, antenatal CMD symptoms predicted offspring PTB (adjusted RR 4·4, 95% CI 1·4,14·1). There was little evidence of associations with SGA. INTERPRETATION This first report of an association between paternal preconception mental health and offspring gestational age, while requiring replication in larger samples, complements earlier work on stress in animals, and further strengthens the case for expanding preconception mental health care to both men and women. FUNDING National Health and Medical Research Council (Australia), Victorian Health Promotion Foundation, Australian Rotary Health, Colonial Foundation, Perpetual Trustees, Financial Markets Foundation for Children (Australia), Royal Children's Hospital Foundation, Murdoch Children's Research Institute, Australian Research Council.
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Affiliation(s)
- Elizabeth A Spry
- Centre for Social and Early Emotional Development, School of Psychology, Faculty of Health, Deakin University, Geelong, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Claire A Wilson
- Section of Women's Mental Health, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- South London and Maudsley NHS Foundation Trust, London, United Kingdom
- Corresponding author at: Section of Women's Mental Health, Institute of Psychiatry, Psychology and Neuroscience, PO31 King's College London, De Crespigny Park, London SE5 8AF, United Kingdom.
| | - Melissa Middleton
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
| | - Margarita Moreno-Betancur
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
| | - Lex W Doyle
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
- Royal Women's Hospital, Melbourne, Australia
| | - Louise M Howard
- Section of Women's Mental Health, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- South London and Maudsley NHS Foundation Trust, London, United Kingdom
| | - Anthony J Hannan
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Australia
| | | | - Jeanie LY Cheong
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
- Royal Women's Hospital, Melbourne, Australia
| | - Lindsey A Hines
- Population Health Science Institute, University of Bristol, Bristol, United Kingdom
| | - Carolyn Coffey
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Stephanie Brown
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
| | - Craig A Olsson
- Centre for Social and Early Emotional Development, School of Psychology, Faculty of Health, Deakin University, Geelong, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
| | - George C Patton
- Murdoch Children's Research Institute, Melbourne, Australia
- University of Melbourne, Melbourne, Australia
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34
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Yao T, Han X, Guan T, Wang Z, Zhang S, Liu C, Liu C, Chen L. Effect of indoor environmental exposure on seminal microbiota and its application in body fluid identification. Forensic Sci Int 2020; 314:110417. [PMID: 32702532 DOI: 10.1016/j.forsciint.2020.110417] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/13/2020] [Indexed: 01/17/2023]
Abstract
Semen is a common body fluid type in forensic sexual assault cases. It is of great significance to effectively identify semen for restoring the crime scene and determining the nature of the case. Nowadays, microbiome-based method shows as a promising tool for forensic body fluid identification. To explore the environmental impact on microbial community of semen and its traceability, 16S rDNA high-throughput sequencing was conducted to ten paired semen samples. Affected by exposure, the diversity of microbial community decreased generally as the genus Staphylococcus exhibited a relatively significant increase. However, the genus Staphylococcus, Corynebacterium, Corynebacterium_1 were observed in almost all 20 samples. Community barplot analysis and heatmap analysis showed composition of the predominant microbe in semen at the phyla and genus level maintained basically, so that it could distinguish from vaginal fluid and saliva regardless of environmental exposure. Based on these results, we believe the application of single microbial marker may limit in semen identification, but the method depending on microbial community might be useful for distinguishing semen even under indoor exposure.
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Affiliation(s)
- Ting Yao
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Xiaolong Han
- Guangzhou Forensic Science Institute, Guangzhou, 510030, China
| | - Tianshan Guan
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Zhi Wang
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Siqi Zhang
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Changhui Liu
- Guangzhou Forensic Science Institute, Guangzhou, 510030, China
| | - Chao Liu
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China.
| | - Ling Chen
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, China.
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35
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Dutta S, Haggerty DK, Rappolee DA, Ruden DM. Phthalate Exposure and Long-Term Epigenomic Consequences: A Review. Front Genet 2020; 11:405. [PMID: 32435260 PMCID: PMC7218126 DOI: 10.3389/fgene.2020.00405] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 03/30/2020] [Indexed: 12/27/2022] Open
Abstract
Phthalates are esters of phthalic acid which are used in cosmetics and other daily personal care products. They are also used in polyvinyl chloride (PVC) plastics to increase durability and plasticity. Phthalates are not present in plastics by covalent bonds and thus can easily leach into the environment and enter the human body by dermal absorption, ingestion, or inhalation. Several in vitro and in vivo studies suggest that phthalates can act as endocrine disruptors and cause moderate reproductive and developmental toxicities. Furthermore, phthalates can pass through the placental barrier and affect the developing fetus. Thus, phthalates have ubiquitous presence in food and environment with potential adverse health effects in humans. This review focusses on studies conducted in the field of toxicogenomics of phthalates and discusses possible transgenerational and multigenerational effects caused by phthalate exposure during any point of the life-cycle.
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Affiliation(s)
- Sudipta Dutta
- Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Diana K Haggerty
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, United States
| | - Daniel A Rappolee
- Department of Obstetrics and Gynecology, Reproductive Endocrinology and Infertility, CS Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, United States.,Reproductive Stress, Inc., Grosse Pointe Farms, MI, United States
| | - Douglas M Ruden
- Department of Obstetrics and Gynecology, Reproductive Endocrinology and Infertility, CS Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, United States.,Institutes for Environmental Health Science, Wayne State University School of Medicine, Detroit, MI, United States
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36
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Ryan CP, Kuzawa CW. Germline epigenetic inheritance: Challenges and opportunities for linking human paternal experience with offspring biology and health. Evol Anthropol 2020; 29:180-200. [DOI: 10.1002/evan.21828] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 09/30/2019] [Accepted: 02/21/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Calen P. Ryan
- Department of AnthropologyNorthwestern University Evanston Illinois USA
| | - Christopher W. Kuzawa
- Department of AnthropologyNorthwestern University Evanston Illinois USA
- Institute for Policy Research Northwestern University Evanston Illinois USA
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37
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Kiefer H, Perrier JP. DNA methylation in bull spermatozoa: evolutionary impacts, interindividual variability, and contribution to the embryo. CANADIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1139/cjas-2019-0071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The DNA methylome of spermatozoa results from a unique epigenetic reprogramming crucial for chromatin compaction and the protection of the paternal genetic heritage. Although bull semen is widely used for artificial insemination (AI), little is known about the sperm epigenome in cattle. The purpose of this review is to synthetize recent work on the bull sperm methylome in light of the knowledge accumulated in humans and model species. We will address sperm-specific DNA methylation features and their potential evolutionary impacts, with particular emphasis on hypomethylated regions and repetitive elements. We will review recent examples of interindividual variability and intra-individual plasticity of the bull sperm methylome as related to fertility and age, respectively. Finally, we will address paternal methylome reprogramming after fertilization, as well as the mechanisms potentially involved in epigenetic inheritance, and provide some examples of disturbances that alter the dynamics of reprogramming in cattle. Because the selection of AI bulls is closely based on their genotypes, we will also discuss the complex interplay between sequence polymorphism and DNA methylation, which represents both a difficulty in addressing the role of DNA methylation in shaping phenotypes and an opportunity to better understand genome plasticity.
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Affiliation(s)
- Hélène Kiefer
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
| | - Jean-Philippe Perrier
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
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38
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Li H, Zhang P, Zhao Y, Zhang H. Low doses of carbendazim and chlorothalonil synergized to impair mouse spermatogenesis through epigenetic pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109908. [PMID: 31706243 DOI: 10.1016/j.ecoenv.2019.109908] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 06/10/2023]
Abstract
Pesticides have been extensively produced and used to help the agricultural production which leads to the contamination of the environment, soil, groundwater sources, and even foodstuffs. Fungicides carbendazim (CBZ) and chlorothalonil (Chl) are widely applied in agriculture and other aspects. CBZ or Chl have been reported to disrupt spermatogenesis and decrease semen quality. However, it is not understood the effects of pubertal exposure to low doses of CBZ and Chl together, and the underlying mechanisms. Therefore, the aim of current investigation was to explore the negative impacts of pubertal exposure to low doses of CBZ and Chl together on spermatogenesis and the role of epigenetic modifications in the process. We demonstrated that CBZ and Chl together synergize to decrease sperm motility in vitro (CBZ 1.0 + Chl 0.1, CBZ 10.0 + CHl 1.0, CBZ 100.0 + Chl 10 μM in incubation medium for 24 h) and sperm concentration and motility in vivo with ICR mice (CBZ 0.1 + Chl 0.1, CBZ 1.0 + CHl 1.0, CBZ 10.0 + Chl 10 mg/kg body weight; oral gavage for five weeks). CBZ + Chl significantly increase reactive oxygen species (ROS) and apoptosis by the increase in the protein level of caspase 8 in vitro. Moreover, CBZ + Chl synergized to disrupt mouse spermatogenesis with the disturbance in sperm production proteins and sperm proteins (VASA, A-Myb, STK31, AR, Acrosin). CBZ + Chl synergized to decrease the protein level of estrogen receptor alpha and the protein level of DNA methylation marker 5 mC in Leydig cells, and to increase the protein levels of histone methylation marker H3K9 and the methylation enzyme G9a in germ cells. Therefore, greater attention should be paid to the use of CBZ and Chl as pesticides to minimise their adverse impacts on spermatogenesis.
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Affiliation(s)
- Huatao Li
- College of Veterinary Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Pengfei Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
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Marcho C, Oluwayiose OA, Pilsner JR. The preconception environment and sperm epigenetics. Andrology 2020; 8:924-942. [PMID: 31901222 DOI: 10.1111/andr.12753] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/12/2019] [Accepted: 12/31/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Infertility is a common reproductive disorder, with male factor infertility accounting for approximately half of all cases. Taking a paternal perceptive, recent research has shown that sperm epigenetics, such as changes in DNA methylation, histone modification, chromatin structure, and noncoding RNA expression, can impact reproductive and offspring health. Importantly, environmental conditions during the preconception period has been demonstrated to shape sperm epigenetics. OBJECTIVES To provide an overview on epigenetic modifications that regulate normal gene expression and epigenetic remodeling that occurs during spermatogenesis, and to discuss the epigenetic alterations that may occur to the paternal germline as a consequence of preconception environmental conditions and exposures. MATERIALS AND METHODS We examined published literature available on databases (PubMed, Google Scholar, ScienceDirect) focusing on adult male preconception environmental exposures and sperm epigenetics in epidemiologic studies and animal models. RESULTS The preconception period is a sensitive developmental window in which a variety of exposures such as toxicants, nutrition, drugs, stress, and exercise, affects sperm epigenetics. DISCUSSION AND CONCLUSION Understanding the environmental legacy of the sperm epigenome during spermatogenesis will enhance our understanding of reproductive health and improve reproductive success and offspring well-being.
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Affiliation(s)
- Chelsea Marcho
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Oladele A Oluwayiose
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts
| | - J Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts
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40
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Schrott R, Murphy SK. Cannabis use and the sperm epigenome: a budding concern? ENVIRONMENTAL EPIGENETICS 2020; 6:dvaa002. [PMID: 32211199 PMCID: PMC7081939 DOI: 10.1093/eep/dvaa002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 05/13/2023]
Abstract
The United States is swiftly moving toward increased legalization of medical and recreational cannabis. Currently considered the most commonly used illicit psychoactive drug, recreational cannabis is legal in 11 states and Washington, DC, and male use is an important and understudied concern. Questions remain, however, about the potential long-term consequences of this exposure and how cannabis might impact the epigenetic integrity of sperm in such a way that could influence the health and development of offspring. This review summarizes cannabis use and potency in the USA, provides a brief overview of DNA methylation as an epigenetic mechanism that is vulnerable in sperm to environmental exposures including cannabis, and summarizes studies that have examined the effects of parental exposure to cannabis or delta-9 tetrahydrocannabinol (THC, the main psychoactive component of cannabis) on the epigenetic profile of the gametes and behavior of offspring. These studies have demonstrated significant changes to the sperm DNA methylome following cannabis use in humans, and THC exposure in rats. Furthermore, the use of rodent models has shown methylation and behavioral changes in rats born to fathers exposed to THC or synthetic cannabinoids, or to parents who were both exposed to THC. These data substantiate an urgent need for additional studies assessing the effects of cannabis exposure on childhood health and development. This is especially true given the current growing state of cannabis use in the USA.
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Affiliation(s)
- Rose Schrott
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University Medical Center, The Chesterfield, 701 W. Main Street, Suite 510, Durham, NC 27701 USA
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Circuit Dr, Durham, NC 27710 USA
| | - Susan K Murphy
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University Medical Center, The Chesterfield, 701 W. Main Street, Suite 510, Durham, NC 27701 USA
- Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Circuit Dr, Durham, NC 27710 USA
- Correspondence address: Duke University Medical Center, The Chesterfield, 701 W. Main Street, Suite 510, Durham, NC 27701, USA. Tel: 919-681-3423; Fax: 919-385-9358; E-mail:
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41
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Han F, Jiang X, Li ZM, Zhuang X, Zhang X, Ouyang WM, Liu WB, Mao CY, Chen Q, Huang CS, Gao F, Cui ZH, Ao L, Li YF, Cao J, Liu JY. Epigenetic Inactivation of SOX30 Is Associated with Male Infertility and Offers a Therapy Target for Non-obstructive Azoospermia. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:72-83. [PMID: 31835093 PMCID: PMC6926170 DOI: 10.1016/j.omtn.2019.10.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 10/10/2019] [Accepted: 10/31/2019] [Indexed: 12/22/2022]
Abstract
Non-obstructive azoospermia (NOA) is the most severe form of male infertility. However, the etiology of NOA is largely unknown, resulting in a lack of clinical treatments. Here, we performed a comparative genome-wide profiling of DNA methylation and identified SOX30 as the most notably hyper-methylated gene at promoter in testicular tissues from NOA patients. This hyper-methylation at promoter of SOX30 directly causes its silencing of expression in NOA. The reduced levels of SOX30 expression are correlated with severity of NOA disease. Deletion of Sox30 in mice uniquely impairs testis development and spermatogenesis with complete absence of spermatozoa in testes leading to male infertility, but does not influence ovary development and female fertility. The pathology and testicular size of Sox30 null mice highly simulate those of NOA patients. Re-expression of Sox30 in Sox30 null mice at adult age reverses the pathological damage of testis and restores the spermatogenesis. The re-presented spermatozoa after re-expression of Sox30 in Sox30 null mice have the ability to start a pregnancy. Moreover, the male offspring of Sox30 re-expression Sox30 null mice still can father children, and these male offspring and their children can live normally more than 1 year without significant difference of physical appearance compared with wild-type mice. In summary, methylated inactivation of SOX30 uniquely impairs spermatogenesis, probably causing NOA disease, and re-expression of SOX30 can successfully restore the spermatogenesis and actual fertility. This study advances our understanding of the pathogenesis of NOA, offering a promising therapy target for NOA disease.
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Affiliation(s)
- Fei Han
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Xiao Jiang
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Zhi-ming Li
- Institute of Reproductive Health, Tongji College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuan Zhuang
- Department of Urology, The First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - Xi Zhang
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Wei-ming Ouyang
- Office of Biotechnology Products, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Wen-bin Liu
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Cheng-yi Mao
- Department of Pathology, Daping Hospital, Army Medical University, Chongqing, China
| | - Qing Chen
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Chuan-shu Huang
- Nelson Institute of Environmental Medicine, NYU School of Medicine, New York, NY, USA
| | - Fei Gao
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Zhi-hong Cui
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - Lin Ao
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Yan-feng Li
- Department of Urology, Daping Hospital, Army Medical University, Chongqing, China
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
- Corresponding author: Jia Cao, Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China.
| | - Jin-yi Liu
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
- Corresponding author: Jin-yi Liu, Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China.
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42
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Ding T, Mokshagundam S, Rinaudo PF, Osteen KG, Bruner-Tran KL. Paternal developmental toxicant exposure is associated with epigenetic modulation of sperm and placental Pgr and Igf2 in a mouse model. Biol Reprod 2019; 99:864-876. [PMID: 29741588 DOI: 10.1093/biolre/ioy111] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/04/2018] [Indexed: 01/16/2023] Open
Abstract
Preterm birth (PTB), parturition prior to 37 weeks' gestation, is the leading cause of neonatal mortality. The causes of spontaneous PTB are poorly understood; however, recent studies suggest that this condition may arise as a consequence of the parental fetal environment. Specifically, we previously demonstrated that developmental exposure of male mice (F1 animals) to the environmental endocrine disruptor 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was associated with reduced sperm quantity/quality in adulthood and control female partners frequently delivered preterm. Reproductive defects persisted in the F2 and F3 descendants, and spontaneous PTB was common. Reproductive changes in the F3 males, the first generation without direct TCDD exposure, suggest the occurrence of epigenetic alterations in the sperm, which have the potential to impact placental development. Herein, we conducted an epigenetic microarray analysis of control and F1 male-derived placentae, which identified 2171 differentially methylated regions, including the progesterone receptor (Pgr) and insulin-like growth factor (Igf2). To assess if Pgr and Igf2 DNA methylation changes were present in sperm and persist in future generations, we assessed methylation and expression of these genes in F1/F3 sperm and F3-derived placentae. Although alterations in methylation and gene expression were observed, in most tissues, only Pgr reached statistical significance. Despite the modest gene expression changes in Igf2, offspring of F1 and F3 males consistently exhibited IUGR. Taken together, our data indicate that paternal developmental TCDD exposure is associated with transgenerational placental dysfunction, suggesting epigenetic modifications within the sperm have occurred. An evaluation of additional genes and alternative epigenetic mechanisms is warranted.
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Affiliation(s)
- Tianbing Ding
- Women's Reproductive Health Research Center, Department of Obstetrics and Gynecology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Shilpa Mokshagundam
- Women's Reproductive Health Research Center, Department of Obstetrics and Gynecology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Paolo F Rinaudo
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, California, USA
| | - Kevin G Osteen
- Women's Reproductive Health Research Center, Department of Obstetrics and Gynecology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.,VA Tennessee Valley Healthcare System, Nashville Tennessee, USA
| | - Kaylon L Bruner-Tran
- Women's Reproductive Health Research Center, Department of Obstetrics and Gynecology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
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43
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Han X, Zhang P, Shen W, Zhao Y, Zhang H. Estrogen Receptor-Related DNA and Histone Methylation May Be Involved in the Transgenerational Disruption in Spermatogenesis by Selective Toxic Chemicals. Front Pharmacol 2019; 10:1012. [PMID: 31572187 PMCID: PMC6749155 DOI: 10.3389/fphar.2019.01012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/08/2019] [Indexed: 12/22/2022] Open
Abstract
Air pollution is a global threat to human health especially spermatogenesis. Animal and epidemiological studies suggest that epigenetic factors can transmit the pathologies transgenerationally. Paternal epigenetic effects can greatly impact offspring health. In this study and together with our previous report, we found that H2S donor Na2S and/or NH3 donor NH4Cl diminished mouse fertility, decreased spermatozoa concentration and motility, and impaired spermatogenesis in three consequent generations (F0, F1, and F2). In the current study, we found that DNA methylation, histone methylation, and estrogen receptor alpha (ERα) were impaired by NH4Cl and/or Na2S in F0, F1, and F2 mouse testes. Moreover, NH4Cl and/or Na2S might act as environmental endocrine-disrupting chemicals to decrease estrogen and testosterone in mouse blood. It has been reported that ERα signaling is intertwined together with DNA methylation and histone methylation, which plays very important roles in spermatogenesis. These data together indicate that the transgenerational disruption in spermatogenesis by NH4Cl and/or Na2S may be through ERα-related DNA methylation and histone methylation pathways. Therefore, we strongly recommend that greater attention should be paid to NH3 and/or H2S contamination to minimize their impact on human health especially spermatogenesis.
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Affiliation(s)
- Xiao Han
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China.,College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Pengfei Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wei Shen
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China.,State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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44
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Zhang P, Zhao Y, Zhang H, Liu J, Feng Y, Yin S, Cheng S, Sun X, Min L, Li L, Shen W. Low dose chlorothalonil impairs mouse spermatogenesis through the intertwining of Estrogen Receptor Pathways with histone and DNA methylation. CHEMOSPHERE 2019; 230:384-395. [PMID: 31112861 DOI: 10.1016/j.chemosphere.2019.05.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 04/23/2019] [Accepted: 05/03/2019] [Indexed: 06/09/2023]
Abstract
Recently, environment contaminants including pesticides, fungicides, mycotoxin and others chemicals have been suggested to be responsible for the decline in the human spermatozoa quality especially motility and the increase in infertility rate. Chlorothalonil is used widely for protection of vegetables and crops because it is a broad spectrum fungicide. It has been reported that chronic occupational exposure to fungicides was associated with poor spermatozoa morphology in young men. The pubertal period is very important for the male reproductive system development due to spermatogonial cell proliferation, the expansion of meiotic and haploid germ cells. Although some investigations have studied the male reproductive toxicity of chlorothalonil, almost no studies focused on spermatogenesis. The aim of our current investigation was to explore the impacts of chlorothalonil on spermatogenesis and the underlying mechanisms. It demonstrates: i) chlorothalonil decreased boar spermatozoa motility in vitro and increased the cell apoptosis; ii) chlorothalonil inhibited mouse spermatogenesis in vivo; iii) chlorothalonil disturbed spermatogenesis through the disruption of estrogen receptor signalling; iv) chlorothalonil disrupted histone methylation and DNA methylation which might be through estrogen signalling pathways. Due to the over use or incorrect use, chlorothalonil might cause serious problems to human health, especially spermatogenesis. Therefore we strongly recommend that greater attention should be paid to this fungicide to minimise its impact on human health especially spermatogenesis.
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Affiliation(s)
- Pengfei Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China; College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Jing Liu
- University Research Core, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yanni Feng
- College of Veterinary Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Shen Yin
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Shunfeng Cheng
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Xiaofeng Sun
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Lingjiang Min
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Lan Li
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Wei Shen
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China.
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45
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Schrott R, Acharya K, Itchon-Ramos N, Hawkey AB, Pippen E, Mitchell JT, Kollins SH, Levin ED, Murphy SK. Cannabis use is associated with potentially heritable widespread changes in autism candidate gene DLGAP2 DNA methylation in sperm. Epigenetics 2019; 15:161-173. [PMID: 31451081 PMCID: PMC6961656 DOI: 10.1080/15592294.2019.1656158] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Parental cannabis use has been associated with adverse neurodevelopmental outcomes in offspring, but how such phenotypes are transmitted is largely unknown. Using reduced representation bisulphite sequencing (RRBS), we recently demonstrated that cannabis use is associated with widespread DNA methylation changes in human and rat sperm. Discs-Large Associated Protein 2 (DLGAP2), involved in synapse organization, neuronal signaling, and strongly implicated in autism, exhibited significant hypomethylation (p < 0.05) at 17 CpG sites in human sperm. We successfully validated the differential methylation present in DLGAP2 for nine CpG sites located in intron seven (p < 0.05) using quantitative bisulphite pyrosequencing. Intron 7 DNA methylation and DLGAP2 expression in human conceptal brain tissue were inversely correlated (p < 0.01). Adult male rats exposed to delta-9-tetrahydrocannabinol (THC) showed differential DNA methylation at Dlgap2 in sperm (p < 0.03), as did the nucleus accumbens of rats whose fathers were exposed to THC prior to conception (p < 0.05). Altogether, these results warrant further investigation into the effects of preconception cannabis use in males and the potential effects on subsequent generations.
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Affiliation(s)
- Rose Schrott
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University Medical Center, Durham, NC, USA.,Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Kelly Acharya
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Duke University Medical Center, Durham, NC, USA
| | - Nilda Itchon-Ramos
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Andrew B Hawkey
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Erica Pippen
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - John T Mitchell
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Scott H Kollins
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Edward D Levin
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Susan K Murphy
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University Medical Center, Durham, NC, USA.,Integrated Toxicology and Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC, USA
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46
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Liu J, Zhang P, Zhao Y, Zhang H. Low dose carbendazim disrupts mouse spermatogenesis might Be through estrogen receptor related histone and DNA methylation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 176:242-249. [PMID: 30939404 DOI: 10.1016/j.ecoenv.2019.03.103] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/20/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Pesticides, fungicides are reportedly involved in a decline in spermatozoa quality, especially motility, and a consequent increase in the rate of infertility. Fungicide carbendazim (CBZ) is widely used in agriculture and other aspects. Although CBZ is known to disrupt spermatogenesis, causing a decrease in spermatozoa concentration and motility, the mechanisms are not fully understood. We aimed to further explore the underlying mechanisms of CBZ disruption of spermatogenesis. Pubertal mice were exposed to low doses (0.1, 1 and 10 mg/kg body weight) of CBZ for 5 weeks, then many factors related to spermatogenesis have been explored. It was found that 0.1-10 mg/kg body weight of CBZ exposure decreased mouse sperm motility and concentration, diminished the important protein factors (VASA, PGK2, B-Amy and CREM) for spermatogenesis, reduced sperm protein acrosin level, disrupted very vital epigenetic factors H3K27, 5 mC and 5 hmC. Furthermore, CBZ exposure damaged estrogen receptor alpha (ERα) pathway by decreased the protein levels of ERα and its targets PI3K and AKT. In summary low doses of CBZ exposure disrupted mouse spermatogenesis through estrogen receptor signaling; and that histone methylation and DNA methylation might play vital roles in CBZ disturbance of spermatogenesis through intertwining with estrogen signaling pathways. CBZ from the contamination in environment or food chain poses a serious threat to the normal development of spermatozoa. Therefore we strongly recommend to minimise the use of CBZ since it causes the severe issues on spermatogenesis.
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Affiliation(s)
- Jing Liu
- University Research Core, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Pengfei Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China; College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
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Jazwiec PA, Sloboda DM. Nutritional adversity, sex and reproduction: 30 years of DOHaD and what have we learned? J Endocrinol 2019; 242:T51-T68. [PMID: 31013473 DOI: 10.1530/joe-19-0048] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/25/2019] [Indexed: 12/12/2022]
Abstract
It is well established that early life environmental signals, including nutrition, set the stage for long-term health and disease risk - effects that span multiple generations. This relationship begins early, in the periconceptional period and extends into embryonic, fetal and early infant phases of life. Now known as the Developmental Origins of Health and Disease (DOHaD), this concept describes the adaptations that a developing organism makes in response to early life cues, resulting in adjustments in homeostatic systems that may prove maladaptive in postnatal life, leading to an increased risk of chronic disease and/or the inheritance of risk factors across generations. Reproductive maturation and function is similarly influenced by early life events. This should not be surprising, since primordial germ cells are established early in life and thus vulnerable to early life adversity. A multitude of 'modifying' cues inducing developmental adaptations have been identified that result in changes in reproductive development and impairments in reproductive function. Many types of nutritional challenges including caloric restriction, macronutrient excess and micronutrient insufficiencies have been shown to induce early life adaptations that produce long-term reproductive dysfunction. Many pathways have been suggested to underpin these associations, including epigenetic reprogramming of germ cells. While the mechanisms still remain to be fully investigated, it is clear that a lifecourse approach to understanding lifetime reproductive function is necessary. Furthermore, investigations of the impacts of early life adversity must be extended to include the paternal environment, especially in epidemiological and clinical studies of offspring reproductive function.
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Affiliation(s)
- Patrycja A Jazwiec
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- The Farncombe Family Digestive Diseases Research Institute, McMaster University, Hamilton, Canada
| | - Deborah M Sloboda
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- The Farncombe Family Digestive Diseases Research Institute, McMaster University, Hamilton, Canada
- Department of Pediatrics and Obstetrics and Gynecology, McMaster University, Hamilton, Canada
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48
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Rajaleid K, Vågerö D. Stress resilience in young men mediates the effect of childhood trauma on their offspring's birth weight - An analysis of 250,000 families. SSM Popul Health 2019; 8:100429. [PMID: 31249858 PMCID: PMC6584590 DOI: 10.1016/j.ssmph.2019.100429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/06/2019] [Accepted: 06/08/2019] [Indexed: 10/31/2022] Open
Abstract
Experiencing the death of a parent during childhood is a severe trauma that seems to affect the next generation's birth weight. We studied the consequences of parental loss during childhood for men's psychological and physiological characteristics at age 18, and whether these were important for their first-born offspring's birth outcomes. We used a structured life-course approach and four-way decomposition analysis to analyse data for 250,427 three-generation families retrieved from nationwide Swedish registers and found that psychological resilience was impaired and body mass index was higher in men who had experienced parental death. Both characteristics were linked to offspring birth weight. This was lower by 18.0 g (95% confidence interval: 5.7, 30.3) for men who lost a parent at ages 8-17 compared to other ages. Resilience mediated 40% of this influence. Mediation by body mass index, systolic and diastolic blood pressure was negligible, as was the effect of parental loss on length of gestation. There was no mediation by the education of the men's future spouse. Previous literature has indicated that the period before puberty, the "slow growth period", is sensitive. Our evidence suggests that this may be too narrow a restriction: boys aged 8-17 appear to be particularly likely to respond to parental loss in a way which affects their future offspring's birth weight. We conclude that the observed transgenerational influence on birth weight is mediated by the father's psychological resilience but not by his body mass index or blood pressure.
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Affiliation(s)
- Kristiina Rajaleid
- Centre for Health Equity Studies, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden.,Stress Research Institute, Stockholm University, Stockholm, Sweden
| | - Denny Vågerö
- Centre for Health Equity Studies, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
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49
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Arzuaga X, Smith MT, Gibbons CF, Skakkebæk NE, Yost EE, Beverly BEJ, Hotchkiss AK, Hauser R, Pagani RL, Schrader SM, Zeise L, Prins GS. Proposed Key Characteristics of Male Reproductive Toxicants as an Approach for Organizing and Evaluating Mechanistic Evidence in Human Health Hazard Assessments. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:65001. [PMID: 31199676 PMCID: PMC6792367 DOI: 10.1289/ehp5045] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/22/2019] [Accepted: 05/30/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Assessing chemicals for their potential to cause male reproductive toxicity involves the evaluation of evidence obtained from experimental, epidemiological, and mechanistic studies. Although mechanistic evidence plays an important role in hazard identification and evidence integration, the process of identifying, screening and analyzing mechanistic studies and outcomes is a challenging exercise due to the diversity of research models and methods and the variety of known and proposed pathways for chemical-induced toxicity. Ten key characteristics of carcinogens provide a valuable tool for organizing and assessing chemical-specific data by potential mechanisms for cancer-causing agents. However, such an approach has not yet been developed for noncancer adverse outcomes. OBJECTIVES The objective in this study was to identify a set of key characteristics that are frequently exhibited by exogenous agents that cause male reproductive toxicity and that could be applied for identifying, organizing, and summarizing mechanistic evidence related to this outcome. DISCUSSION The identification of eight key characteristics of male reproductive toxicants was based on a survey of known male reproductive toxicants and established mechanisms and pathways of toxicity. The eight key characteristics can provide a basis for the systematic, transparent, and objective organization of mechanistic evidence relevant to chemical-induced effects on the male reproductive system. https://doi.org/10.1289/EHP5045.
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Affiliation(s)
- Xabier Arzuaga
- National Center for Environmental Assessment, U.S. Environmental Protection Agency, Washington, DC, USA
| | - Martyn T. Smith
- University of California, Berkeley, School of Public Health, Berkeley, California, USA
| | - Catherine F. Gibbons
- National Center for Environmental Assessment, U.S. Environmental Protection Agency, Washington, DC, USA
| | - Niels E. Skakkebæk
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Erin E. Yost
- National Center for Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Brandiese E. J. Beverly
- Office of Health Assessment and Translation, National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC, USA
| | - Andrew K. Hotchkiss
- National Center for Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Russ Hauser
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Rodrigo L. Pagani
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Steven M. Schrader
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio, USA (retired)
| | - Lauren Zeise
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Sacramento, California, USA
| | - Gail S. Prins
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois, USA
- School of Public Health, University of Illinois at Chicago, Chicago, Illinois, USA
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50
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Men Y, Zhao Y, Zhang P, Zhang H, Gao Y, Liu J, Feng Y, Li L, Shen W, Sun Z, Min L. Gestational exposure to low-dose zearalenone disrupting offspring spermatogenesis might be through epigenetic modifications. Basic Clin Pharmacol Toxicol 2019; 125:382-393. [PMID: 31058416 DOI: 10.1111/bcpt.13243] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 04/24/2019] [Indexed: 12/12/2022]
Abstract
Zearalenone (ZEA), a F-2 mycotoxin produced by Fusarium, has been found to be an endocrine disruptor through oestrogen receptor signalling pathway to impair spermatogenesis. The disruption on reproductive systems by ZEA exposure might be transgenerational. In our previous report, we have found that low dose (lower than no-observed effect level, NOEL) of ZEA impaired mouse spermatogenesis and decreased mouse semen quality. The purpose of the current investigation was to explore the impacts of low-dose ZEA on spermatogenesis in the offspring after prenatal exposure and the underlying mechanisms. And it demonstrated that prenatal low-dose ZEA exposure disrupted the meiosis process to inhibit the spermatogenesis in offspring and even to diminish the semen quality by the decrease in spermatozoa motility and concentration. The DNA methylation marker 5hmC was decreased, the histone methylation markers H3K9 and H3K27 were elevated, and oestrogen receptor alpha was reduced in the offspring testis after prenatal low-dose ZEA exposure. The data suggest that the disruption in spermatogenesis by prenatal low-dose ZEA exposure may be through the modifications on epigenetic pathways (DNA methylation and histone methylation) and the interactions with oestrogen receptor signalling pathway. Moreover, in the current study, the male offspring were indirectly exposed to low-dose ZEA through placenta and the spermatogenesis in offspring was disrupted which suggested that the toxicity of ZEA on reproductive systems was very severe. Therefore, we strongly recommend that greater attention should be paid to this mycotoxin to minimize its adverse impact on human spermatogenesis.
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Affiliation(s)
- Yuhao Men
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao, China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Pengfei Zhang
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao, China.,College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yishan Gao
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao, China
| | - Jing Liu
- University Research Core, Qingdao Agricultural University, Qingdao, China
| | - Yanni Feng
- College of Veterinary Sciences, Qingdao Agricultural University, Qingdao, China
| | - Lan Li
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wei Shen
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Zhongyi Sun
- Center for Reproductive Medicine, Shenzhen Hospital, Peking University, Shenzhen, China
| | - Lingjiang Min
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao, China
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